Add presentations about agl-compositor

Signed-off-by: Dylan Aïssi <dylan.aissi@collabora.com>

content/overview/presentations.md

@@ -30,7 +30,14 @@ Apertis community have previously shared (ordered newest to oldest):
   - Introduction to Apertis (a Debian derivative) an industrial embedded systems
     by Arnaud Ferraris
   - [slides](/images/DebianEmbarque_CdL2023_1kJVAn8.pdf)
-  - Presented at the [Capitole du Libre 2023](https://capitoledulibre.org/)
+  - Presented at the [Capitole du Libre 2023](https://capitoledulibre.org/)  
+ 
+* [The AGL Wayland compositor](https://www.youtube.com/watch?v=WxdlwGParzg)
+  - Short overview about *agl-compositor*, the [Wayland compositor
+    used in Apertis]({{< ref "wayland_compositors.md" >}})
+    by Marius Vlad
+  - [slides](/images/EOSS2023_agl_compositor_marius_vlad.pdf)
+  - Presented at the [EOSS 2023](https://eoss2023.sched.com/)
 
 # 2022
 
@@ -40,6 +47,13 @@ Apertis community have previously shared (ordered newest to oldest):
   - [slides](/images/2022-05-13_LLC_Apertis_and_ELISA_final.pdf)
   - Presented at the [LLC 2022](https://lundlinuxcon.org/)
 
+# 2021
+
+* [A libweston-based compositor for Automotive Grade Linux](https://www.collabora.com/news-and-blog/news-and-events/a-libweston-based-compositor-for-automotive-grade-linux.html)
+  - Introduction to *agl-compositor*, the [Wayland compositor
+    used in Apertis]({{< ref "wayland_compositors.md" >}})
+    by Marius Vlad
+
 # 2020
 
 * [Do We Need an Industrial Grade Linux?](https://www.youtube.com/watch?v=OJcUpP5b3WY)