docs: Prepare for new sub tree

See #11925

docs/content/en/functions/transform/CanHighlight.md

@@ -1,18 +0,0 @@
----
-title: transform.CanHighlight
-description: Reports whether the given code language is supported by the Chroma highlighter.
-categories: []
-keywords: []
-action:
-  aliases: []
-  related:
-    - functions/transform/Highlight
-    - functions/transform/HighlightCodeBlock
-  returnType: bool
-  signatures: [transform.CanHighlight LANGUAGE]
----
-
-```go-html-template
-{{ transform.CanHighlight "go" }} → true
-{{ transform.CanHighlight "klingon" }} → false
-```