diff --git a/content/developer/apis.md b/content/developer/apis.md
index 671dc9fee4bf829fe112689518efbccf1ab129d5..de58803992aa35a8a1da84bd1b838e40fc906a13 100644
--- a/content/developer/apis.md
+++ b/content/developer/apis.md
@@ -7,7 +7,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Apertis APIs
# Platform libraries used by applications
diff --git a/content/developer/app-dev.md b/content/developer/app-dev.md
index 3cfd82fb707e406fc5b769da2f2c5c5b0ca291ed..a83b1f26afce43689aa440aeb3a773af08eab91f 100644
--- a/content/developer/app-dev.md
+++ b/content/developer/app-dev.md
@@ -9,7 +9,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Application development
diff --git a/content/developer/appdev-ade.md b/content/developer/appdev-ade.md
index 58c1112099f17514d8c69e61a8568629ad1a7622..a4ffb0abe1930e76d7bc90dcdb65a7854d4758d8 100644
--- a/content/developer/appdev-ade.md
+++ b/content/developer/appdev-ade.md
@@ -7,7 +7,7 @@ authors:
years: [2017]
license: CC-BY-SAv4.0
-...
+---
# Apertis Development Environment
diff --git a/content/developer/appdev-agents.md b/content/developer/appdev-agents.md
index cba75b66079b2b5762128da5e492d200a7a9108b..11fdd3f15f972acb548309ac21e5d3a5a38679ae 100644
--- a/content/developer/appdev-agents.md
+++ b/content/developer/appdev-agents.md
@@ -10,7 +10,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Create an agent
diff --git a/content/developer/appdev-debugging.md b/content/developer/appdev-debugging.md
index d271e08ab3d356ebbf55bff9bc0e73ff8fac39b5..de41ad3578160308afb75e436adfa88202813283 100644
--- a/content/developer/appdev-debugging.md
+++ b/content/developer/appdev-debugging.md
@@ -1,6 +1,6 @@
---
short-description: "How to debug an application"
-...
+---
# Debugging app in eclipse
diff --git a/content/developer/appdev-design.md b/content/developer/appdev-design.md
index 919be843d55a4fc881d36973f1c329fa874620f1..d1cb94cd747d22205636d329c1973ab7d708d00e 100644
--- a/content/developer/appdev-design.md
+++ b/content/developer/appdev-design.md
@@ -7,7 +7,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Application design
diff --git a/content/developer/appdev-hello-world.md b/content/developer/appdev-hello-world.md
index 15b816ccf592dd53caeef52d4518cf1d4788b5a8..d6931acacf68151b426b6eaaae5e02abfc9b1112 100644
--- a/content/developer/appdev-hello-world.md
+++ b/content/developer/appdev-hello-world.md
@@ -9,7 +9,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Hello World
diff --git a/content/developer/apps-core.md b/content/developer/apps-core.md
index 047d39666b732f65ae99cef07ff7101cfb138a90..ecf92cd340bd1d4c86161507a815e21e96716389 100644
--- a/content/developer/apps-core.md
+++ b/content/developer/apps-core.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Core applications
diff --git a/content/developer/bundle-spec.md b/content/developer/bundle-spec.md
index 106ce9bd593352e8756d61d7844e5f66407db5d5..05678394d6cd22b16cac58cdbd0a8d2b5c307d46 100644
--- a/content/developer/bundle-spec.md
+++ b/content/developer/bundle-spec.md
@@ -7,7 +7,7 @@ authors:
years: [2016, 2017]
license: CC-BY-SAv4.0
-...
+---
# Apertis Application Bundle Specification, version 1.2.0
diff --git a/content/developer/connectivity.md b/content/developer/connectivity.md
index e7c553fcf02524dbe24cf7c3a7260b355419e7e3..20e7fea27b1ef2c7ab4e22415c9ca9d2e0cd6e6b 100644
--- a/content/developer/connectivity.md
+++ b/content/developer/connectivity.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Connectivity
diff --git a/content/developer/cross-build-toolchain.md b/content/developer/cross-build-toolchain.md
index 6d083c962308accda3d1541646e9d007f7877f07..0bcecfc3d7cb61d7cabc1369820d0623552b4234 100644
--- a/content/developer/cross-build-toolchain.md
+++ b/content/developer/cross-build-toolchain.md
@@ -7,7 +7,7 @@ authors:
years: [2019]
license: CC-BY-SAv4.0
-...
+---
# Apertis Toolchain
diff --git a/content/developer/deployment-management.md b/content/developer/deployment-management.md
index 4270f4cd01c77b28109d1d25e9d18c2687ecbc33..8c9536fa82a7030b7224637ffd8b539d6f07dee9 100644
--- a/content/developer/deployment-management.md
+++ b/content/developer/deployment-management.md
@@ -7,7 +7,7 @@ authors:
years: [2019]
license: CC-BY-SAv4.0
-...
+---
# Deployment management
## Design
diff --git a/content/developer/faq.md b/content/developer/faq.md
index 037e6f0bf114f09f31307bbf22a8d2cc04448bb3..db88eb326ca8507d93d01f98bb290673bc1f25d4 100644
--- a/content/developer/faq.md
+++ b/content/developer/faq.md
@@ -7,7 +7,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# FAQ
diff --git a/content/developer/framework-app.md b/content/developer/framework-app.md
index 28231d73f051045e2748df028696f7e89befcce3..18a0e76a13c0220187fb0196ae7b4635024098b7 100644
--- a/content/developer/framework-app.md
+++ b/content/developer/framework-app.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Application framework
diff --git a/content/developer/framework-ui.md b/content/developer/framework-ui.md
index 3fb597549305298bb4fdbeff2da673702b772be7..80a158f7252cb7a09e7f76a4eafaa034a7a9253b 100644
--- a/content/developer/framework-ui.md
+++ b/content/developer/framework-ui.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# UI framework
diff --git a/content/developer/index.md b/content/developer/index.md
index 8f10c49a563c2154f31bffbc920190ff10643f0b..93a3c40251bd6e1f99d7a12a7ab030607a64d717 100644
--- a/content/developer/index.md
+++ b/content/developer/index.md
@@ -9,7 +9,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Apertis application developer guide
diff --git a/content/developer/infrastructure-ui.md b/content/developer/infrastructure-ui.md
index 880e0a4c3e2d9044dc53dfb5cdc55ac9c4f03512..e063eb567498a461b9da1a67bfc7df975bbe13ec 100644
--- a/content/developer/infrastructure-ui.md
+++ b/content/developer/infrastructure-ui.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Infrastructure UI
diff --git a/content/developer/install.md b/content/developer/install.md
index 091d99d3b74cb1957515bd9147a0597f56f8bf06..956d40cf072e27b3c77276c0a92c14dde46edd88 100644
--- a/content/developer/install.md
+++ b/content/developer/install.md
@@ -9,7 +9,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Installing the SDK
diff --git a/content/developer/internet.md b/content/developer/internet.md
index 6f02fa9854a3955b797a73de2b25172ecce17501..4ce1f589b27bc2c51a9fc09a68136b4f64bb0b5b 100644
--- a/content/developer/internet.md
+++ b/content/developer/internet.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Internet services
diff --git a/content/developer/licensing.md b/content/developer/licensing.md
index f1b7a7ff8ba0ec87a84c8dd7fa1ff8fd7080cad1..deb29de7b97b6b11ee65da80746daccbf9ef584b 100644
--- a/content/developer/licensing.md
+++ b/content/developer/licensing.md
@@ -7,7 +7,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Choose a license for your application
diff --git a/content/developer/multimedia.md b/content/developer/multimedia.md
index ae73b8080567e82ac6c48384e787d2cd464ee721..41730102c6f9db8ce388a4d2e3b57596669be4b0 100644
--- a/content/developer/multimedia.md
+++ b/content/developer/multimedia.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Multimedia
diff --git a/content/developer/navigation.md b/content/developer/navigation.md
index 21f3bd81dcc2345bc34708cb473880cbf492c9eb..5ca44c422cee2a589419eaceaed2a800197933ce 100644
--- a/content/developer/navigation.md
+++ b/content/developer/navigation.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Navigation
diff --git a/content/developer/platform-guide.md b/content/developer/platform-guide.md
index a1b6e2584b5c94bce7749ba9f8cbf7e0c5c2cfaf..7db2cda64080a9ade7084271033bb45a3872d0ff 100644
--- a/content/developer/platform-guide.md
+++ b/content/developer/platform-guide.md
@@ -10,7 +10,7 @@ authors:
years: [2017]
license: CC-BY-SAv4.0
-...
+---
# Apertis platform guide
diff --git a/content/developer/programming-guide-api-stability.md b/content/developer/programming-guide-api-stability.md
index 67e106b662c997873f978e11d978558eee18f81c..137b4025f521b2074dd0db7f5060284df377288e 100644
--- a/content/developer/programming-guide-api-stability.md
+++ b/content/developer/programming-guide-api-stability.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Apertis API stability
diff --git a/content/developer/programming-guide-apparmor.md b/content/developer/programming-guide-apparmor.md
index 77428c67793cf801f2c2e478d42417234e673c8c..e4dd12a6e2c977aae2429b74490216f29832f4bd 100644
--- a/content/developer/programming-guide-apparmor.md
+++ b/content/developer/programming-guide-apparmor.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Security and access control
diff --git a/content/developer/programming-guide-coding-conventions.md b/content/developer/programming-guide-coding-conventions.md
index 3e2697f6635fef7743786df6685047c7645565e1..811399a8dca5d0d72c832da794582d92eb66db36 100644
--- a/content/developer/programming-guide-coding-conventions.md
+++ b/content/developer/programming-guide-coding-conventions.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Coding conventions
diff --git a/content/developer/programming-guide-filesystem.md b/content/developer/programming-guide-filesystem.md
index de4144bec4a4854ad8b4e9b7f389ea2bc30e8493..47a9286a77d8a4340acb1d9ab4dde19f86da49dc 100644
--- a/content/developer/programming-guide-filesystem.md
+++ b/content/developer/programming-guide-filesystem.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Filesystem access
diff --git a/content/developer/programming-guide-gsettings.md b/content/developer/programming-guide-gsettings.md
index 3d59a4540258afb49afa8aebeb6c1bcacb27d152..d84bbd07be469ce8c71669476f4d25b65408819c 100644
--- a/content/developer/programming-guide-gsettings.md
+++ b/content/developer/programming-guide-gsettings.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# GSettings
diff --git a/content/developer/programming-guide-index.md b/content/developer/programming-guide-index.md
index dedb99e0330800efdd2e17bc833ae9f241824c3e..e669437058c26c2fa0b86b41191d4ac9e742055b 100644
--- a/content/developer/programming-guide-index.md
+++ b/content/developer/programming-guide-index.md
@@ -5,7 +5,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Programming guidelines
diff --git a/content/developer/programming-guide-internationalization.md b/content/developer/programming-guide-internationalization.md
index 02f83b29296a825650243db80fb0b0f92f14ce4b..0bd6402cd185062a30859216aff1c2c11ff5d118 100644
--- a/content/developer/programming-guide-internationalization.md
+++ b/content/developer/programming-guide-internationalization.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Internationalization
diff --git a/content/developer/programming-guide-introspection.md b/content/developer/programming-guide-introspection.md
index 903cbb395368766048027e8a80a6fa9448381f96..c16216d2ea7d4aae6004a5f81d21da7cb39d17de 100644
--- a/content/developer/programming-guide-introspection.md
+++ b/content/developer/programming-guide-introspection.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Introspection
diff --git a/content/developer/programming-guide-logging.md b/content/developer/programming-guide-logging.md
index 2c89cd4d7275387015770abff4dd1c814aa4dc74..8123c5a2af976aa6b381d76119a9f84b09e2f0ab 100644
--- a/content/developer/programming-guide-logging.md
+++ b/content/developer/programming-guide-logging.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Logging
diff --git a/content/developer/programming-guide-memory-management.md b/content/developer/programming-guide-memory-management.md
index c5638fcc9190a0efdcd606079accc38d4ce6aff4..a80a086950678b1d9d54615689c1f3cb973410ef 100644
--- a/content/developer/programming-guide-memory-management.md
+++ b/content/developer/programming-guide-memory-management.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Memory management
diff --git a/content/developer/programming-guide-processes.md b/content/developer/programming-guide-processes.md
index d06389c596449d936dd91e38d4e015f49be1ed54..7fa126d578d670ebc2d0ede6a8d4d18a367494fd 100644
--- a/content/developer/programming-guide-processes.md
+++ b/content/developer/programming-guide-processes.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Processes
diff --git a/content/developer/programming-guide-pstore.md b/content/developer/programming-guide-pstore.md
index ec12ff06924c26abdee2f78401f6dbd0b362610b..eab006b14e74b75dae29da70281683fefa330eee 100644
--- a/content/developer/programming-guide-pstore.md
+++ b/content/developer/programming-guide-pstore.md
@@ -7,7 +7,7 @@ authors:
years: [2019]
license: CC-BY-SAv4.0
-...
+---
# PStore
diff --git a/content/developer/programming-guide-sqlite.md b/content/developer/programming-guide-sqlite.md
index af73901473954cc00947ca6384ccdee877a460c1..6b5ff04be3cad0156a608b40629b82654c271fad 100644
--- a/content/developer/programming-guide-sqlite.md
+++ b/content/developer/programming-guide-sqlite.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Using databases
diff --git a/content/developer/programming-guide-tooling.md b/content/developer/programming-guide-tooling.md
index efc06a371dbc532c30941f67efbf23b5696e9879..6a0c59d1b351c79029c4e1eaab83a7720660785b 100644
--- a/content/developer/programming-guide-tooling.md
+++ b/content/developer/programming-guide-tooling.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Tooling
diff --git a/content/developer/programming-guide-tracker.md b/content/developer/programming-guide-tracker.md
index 5d97c03987ccb9ff059264edb5436b6c9f7f925f..5344a1316471785df27be1b102b9aab234289472 100644
--- a/content/developer/programming-guide-tracker.md
+++ b/content/developer/programming-guide-tracker.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Indexing and searching
diff --git a/content/developer/programming-guide-unit-testing.md b/content/developer/programming-guide-unit-testing.md
index 1db5cdb3eca4ca80e90075c595abac4badc2200b..2269a3e4eb2aaf86388391f5ac22b7f9b979af13 100644
--- a/content/developer/programming-guide-unit-testing.md
+++ b/content/developer/programming-guide-unit-testing.md
@@ -10,7 +10,7 @@ authors:
years: [2015]
license: CC-BY-SAv4.0
-...
+---
# Unit testing
diff --git a/content/developer/sdk-techs.md b/content/developer/sdk-techs.md
index 23a7c6caa6913b52e4ee7b538e7cb419cee17dea..5806736a87fe4ee09f83560938d42629bd9b96eb 100644
--- a/content/developer/sdk-techs.md
+++ b/content/developer/sdk-techs.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Technologies
diff --git a/content/developer/sdk-usage.md b/content/developer/sdk-usage.md
index 68c6c71842f777c28e334074778546ccea74dc6b..26d24934fa83c9ae9e4552b0a2de84d22261dbee 100644
--- a/content/developer/sdk-usage.md
+++ b/content/developer/sdk-usage.md
@@ -12,7 +12,7 @@ authors:
years: [2019]
license: CC-BY-SAv4.0
-...
+---
# Using the SDK
diff --git a/content/developer/sysroots-and-devroots.md b/content/developer/sysroots-and-devroots.md
index 3b351c500707ba3d07bdbed1487582e6ad655a6a..1ce4c3798cd5eecac3eb7d301c18ced2e1dd0409 100644
--- a/content/developer/sysroots-and-devroots.md
+++ b/content/developer/sysroots-and-devroots.md
@@ -7,7 +7,7 @@ authors:
years: [2019]
license: CC-BY-SAv4.0
-...
+---
# Sysroot and devroots
diff --git a/content/developer/telephony-ip.md b/content/developer/telephony-ip.md
index e61854d86acc7d7eb19f93d4bf5af8a03350d231..357c70b28279a57dba2ba33bf94825b9a4a48d68 100644
--- a/content/developer/telephony-ip.md
+++ b/content/developer/telephony-ip.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# VoIP, IM and groupware
diff --git a/content/developer/telephony.md b/content/developer/telephony.md
index 281c1c9eb02ea3253ad624d0163954dc872235f9..ae502f60029b274ab9e548ca29cc440c9f2721dc 100644
--- a/content/developer/telephony.md
+++ b/content/developer/telephony.md
@@ -6,7 +6,7 @@ authors:
years: [2015, 2016]
license: CC-BY-SAv4.0
-...
+---
# Telephony
diff --git a/content/developer/vm-config.md b/content/developer/vm-config.md
index a5a93cec56f762488dcb372d2653b3e65bff002b..e8c9d88038248382b90cfcb984f9b07aaffddbee 100644
--- a/content/developer/vm-config.md
+++ b/content/developer/vm-config.md
@@ -9,7 +9,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Configuring the virtual machine
diff --git a/content/developer/vm-management.md b/content/developer/vm-management.md
index a5d431e2b08b2f4638dc0705878fd61d731fec89..ed9c1fab1e426be7e5c2f06e632008d0098f39fb 100644
--- a/content/developer/vm-management.md
+++ b/content/developer/vm-management.md
@@ -9,7 +9,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Managing the virtual machine
diff --git a/content/developer/vm-netboot-server.md b/content/developer/vm-netboot-server.md
index 5d1e7a4feecaf877f582319a4466546b0236f0df..482cc6a3fc383fffdf7f2f1cae31ff38aaeadb59 100644
--- a/content/developer/vm-netboot-server.md
+++ b/content/developer/vm-netboot-server.md
@@ -7,7 +7,7 @@ authors:
years: [2019]
license: CC-BY-SAv4.0
-...
+---
# Setup SDK VM as network management server
diff --git a/content/developer/vm-setup.md b/content/developer/vm-setup.md
index 80584079a710cdb88bd8919df434e132ac2038af..f0b027ab51f97f339806318ee9e667836a0ff382 100644
--- a/content/developer/vm-setup.md
+++ b/content/developer/vm-setup.md
@@ -9,7 +9,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Setting up the virtual machine
diff --git a/content/developer/widget-catalog.md b/content/developer/widget-catalog.md
index e0fa6e580dfabea98739d7217ea7ff569417bef0..9cff9db82b78bb3574a75439c9f35b3f055d2517 100644
--- a/content/developer/widget-catalog.md
+++ b/content/developer/widget-catalog.md
@@ -7,7 +7,7 @@ authors:
years: [2016]
license: CC-BY-SAv4.0
-...
+---
# Widget catalog