Document the base layout template

netbox/templates/base/layout.html

@@ -4,6 +4,14 @@
 {% load search %}
 {% load static %}
 
+{% comment %}
+Blocks:
+  header: Page header
+  tabs: Horizontal navigation tabs
+  content: Page content
+  modals: Bootstrap 5 modal components
+{% endcomment %}
+
 {% block layout %}
 
   <div class="container-fluid px-0">