docs: Prepare for new sub tree

See #11925

docs/content/en/functions/collections/Merge.md

@@ -1,69 +0,0 @@
----
-title: collections.Merge
-description: Returns the result of merging two or more maps.
-categories: []
-keywords: []
-action:
-  aliases: [merge]
-  related:
-    - functions/collections/Append
-  returnType: any
-  signatures: [collections.Merge MAP MAP...]
-aliases: [/functions/merge]
----
-
-Returns the result of merging two or more maps from left to right. If a key already exists, `merge` updates its value. If a key is absent, `merge` inserts the value under the new key.
-
-Key handling is case-insensitive.
-
-The following examples use these map definitions:
-
-```go-html-template
-{{ $m1 := dict "x" "foo" }}
-{{ $m2 := dict "x" "bar" "y" "wibble" }}
-{{ $m3 := dict "x" "baz" "y" "wobble" "z" (dict "a" "huey") }}
-```
-
-Example 1
-
-```go-html-template
-{{ $merged := merge $m1 $m2 $m3 }}
-
-{{ $merged.x }}   → baz
-{{ $merged.y }}   → wobble
-{{ $merged.z.a }} → huey
-```
-
-Example 2
-
-```go-html-template
-{{ $merged := merge $m3 $m2 $m1 }}
-
-{{ $merged.x }}   → foo
-{{ $merged.y }}   → wibble
-{{ $merged.z.a }} → huey
-```
-
-Example 3
-
-```go-html-template
-{{ $merged := merge $m2 $m3 $m1 }}
-
-{{ $merged.x }}   → foo
-{{ $merged.y }}   → wobble
-{{ $merged.z.a }} → huey
-```
-
-Example 4
-
-```go-html-template
-{{ $merged := merge $m1 $m3 $m2 }}
-
-{{ $merged.x }}   → bar
-{{ $merged.y }}   → wibble
-{{ $merged.z.a }} → huey
-```
-
-{{% note %}}
-Regardless of depth, merging only applies to maps. For slices, use [append](/functions/collections/append).
-{{% /note %}}