content: Consolidate configuration documentation

content/en/quick-reference/functions.md

@@ -1,14 +1,8 @@
 ---
 title: Functions
 description: A quick reference guide to Hugo's functions, grouped by namespace. Aliases, if any, appear in parentheses to the right of the function name.
-categories: [quick reference]
+categories: []
 keywords: []
-menu:
-  docs:
-    parent: quick-reference
-    weight: 30
-weight: 30
-toc: true
 ---
 
-{{% quick-reference section="functions" %}}
+{{< quick-reference section="functions" >}}