docs: Prepare for new sub tree

See #11925

docs/content/en/functions/resources/Copy.md

@@ -1,32 +0,0 @@
----
-title: resources.Copy
-description: Copies the given resource to the target path.
-categories: []
-action:
-  aliases: []
-  related: []
-  returnType: resource.Resource
-  signatures: [resources.Copy TARGETPATH RESOURCE]
----
-
-{{< new-in 0.100.0 >}}
-
-```go-html-template
-{{ with resources.Get "images/a.jpg" }}
-  {{ with resources.Copy "img/new-image-name.jpg" . }}
-    <img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}" alt="">
-  {{ end }}
-{{ end }}
-```
-
-The relative URL of the new published resource will be:
-
-```text
-/img/new-image-name.jpg
-```
-
-The target path must be different than the source path, as shown in the example above.
-
-{{% note %}}
-Use the `resources.Copy` function with global, page, and remote resources.
-{{% /note %}}