docs: Prepare for new sub tree

See #11925

docs/content/en/functions/cast/ToString.md

@@ -1,51 +0,0 @@
----
-title: cast.ToString
-description: Converts a value to a string.
-categories: []
-keywords: []
-action:
-  aliases: [string]
-  related:
-    - functions/cast/ToFloat
-    - functions/cast/ToInt
-  returnType: string
-  signatures: [cast.ToString INPUT]
-aliases: [/functions/string]
----
-
-With a decimal (base 10) input:
-
-```go-html-template
-{{ string 11 }} → 11 (string)
-{{ string "11" }} → 11 (string)
-
-{{ string 11.1 }} → 11.1 (string)
-{{ string "11.1" }} → 11.1 (string)
-
-{{ string 11.9 }} → 11.9 (string)
-{{ string "11.9" }} → 11.9 (string)
-```
-
-With a binary (base 2) input:
-
-```go-html-template
-{{ string 0b11 }} → 3 (string)
-{{ string "0b11" }} → 0b11 (string)
-```
-
-With an octal (base 8) input (use either notation):
-
-```go-html-template
-{{ string 011 }} → 9 (string)
-{{ string "011" }} → 011 (string)
-
-{{ string 0o11 }} → 9 (string)
-{{ string "0o11" }} → 0o11 (string)
-```
-
-With a hexadecimal (base 16) input:
-
-```go-html-template
-{{ string 0x11 }} → 17 (string)
-{{ string "0x11" }} → 0x11 (string)
-```