Nested recursive sections in nav bar

content/release/14.12.md

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+weight = 100
+title = "14.12"
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+
+# Release 14.12
+
+- {{< page-title-ref "/release/14.12/releasenotes.md" >}}

content/release/15.03.md

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+weight = 100
+title = "15.03"
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+
+# Release 15.03
+
+- {{< page-title-ref "/release/15.03/releasenotes.md" >}}

content/release/15.06.md

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+weight = 100
+title = "15.06"
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+
+# Release 15.06
+
+- {{< page-title-ref "/release/15.06/releasenotes.md" >}}

content/release/15.09.md

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+weight = 100
+title = "15.09"
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+
+# Release 15.09
+
+- {{< page-title-ref "/release/15.09/releasenotes.md" >}}

content/release/15.12.md

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+weight = 100
+title = "15.12"
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+
+# Release 15.12
+
+- {{< page-title-ref "/release/15.12/releasenotes.md" >}}

content/release/16.03.md

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+weight = 100
+title = "16.03"
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+
+# Release 16.03
+
+- {{< page-title-ref "/release/16.03/release_schedule.md" >}}
+- {{< page-title-ref "/release/16.03/releasenotes.md" >}}

content/release/16.06.md

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+weight = 100
+title = "16.06"
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+
+# Release 16.06
+
+- {{< page-title-ref "/release/16.06/release_schedule.md" >}}
+- {{< page-title-ref "/release/16.06/releasenotes.md" >}}

content/release/16.09.md

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+weight = 100
+title = "16.09"
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+
+# Release 16.09
+
+- {{< page-title-ref "/release/16.09/release_schedule.md" >}}
+- {{< page-title-ref "/release/16.09/releasenotes.md" >}}

content/release/16.12.md

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+weight = 100
+title = "16.12"
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+
+# Release 16.12
+
+- {{< page-title-ref "/release/16.12/release_schedule.md" >}}
+- {{< page-title-ref "/release/16.12/releasenotes.md" >}}

content/release/17.03.md

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+weight = 100
+title = "17.03"
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+
+# Release 17.03
+
+- {{< page-title-ref "/release/17.03/release_schedule.md" >}}
+- {{< page-title-ref "/release/17.03/releasenotes.md" >}}

content/release/17.06.md

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+weight = 100
+title = "17.06"
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+
+# Release 17.06
+
+- {{< page-title-ref "/release/17.06/release_schedule.md" >}}
+- {{< page-title-ref "/release/17.06/releasenotes.md" >}}

content/release/17.09.md

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+weight = 100
+title = "17.09"
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+
+# Release 17.09
+
+- {{< page-title-ref "/release/17.09/release_schedule.md" >}}
+- {{< page-title-ref "/release/17.09/releasenotes.md" >}}

content/release/17.12.1.md

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+weight = 100
+title = "17.12.1"
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+
+# Release 17.12.1
+
+- {{< page-title-ref "/release/17.12.1/releasenotes.md" >}}

content/release/17.12.md

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+weight = 100
+title = "17.12"
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+
+# Release 17.12
+
+- {{< page-title-ref "/release/17.12/release_schedule.md" >}}
+- {{< page-title-ref "/release/17.12/releasenotes.md" >}}

content/release/18.03.md

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+weight = 100
+title = "18.03"
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+
+# Release 18.03
+
+- {{< page-title-ref "/release/18.03/release_schedule.md" >}}
+- {{< page-title-ref "/release/18.03/releasenotes.md" >}}

content/release/18.06.md

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+weight = 100
+title = "18.06"
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+
+# Release 18.06
+
+- {{< page-title-ref "/release/18.06/release_schedule.md" >}}
+- {{< page-title-ref "/release/18.06/releasenotes.md" >}}

content/release/18.09.md

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+weight = 100
+title = "18.09"
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+
+# Release 18.09
+
+- {{< page-title-ref "/release/18.09/release_schedule.md" >}}
+- {{< page-title-ref "/release/18.09/releasenotes.md" >}}

content/release/18.12.md

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+weight = 100
+title = "18.12"
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+
+# Release 18.12
+
+- {{< page-title-ref "/release/18.12/release_schedule.md" >}}
+- {{< page-title-ref "/release/18.12/releasenotes.md" >}}

content/release/v2019.0.md

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+weight = 100
+title = "v2019.0"
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+
+# Release v2019.0
+
+- {{< page-title-ref "/release/v2019.0/release_schedule.md" >}}
+- {{< page-title-ref "/release/v2019.0/releasenotes.md" >}}

content/release/v2019.1.md

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+weight = 100
+title = "v2019.1"
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+
+# Release v2019.1
+
+- {{< page-title-ref "/release/v2019.1/release_schedule.md" >}}
+- {{< page-title-ref "/release/v2019.1/releasenotes.md" >}}