docs: Prepare for new sub tree

See #11925

docs/content/en/functions/go-template/if.md

@@ -1,54 +0,0 @@
----
-title: if
-description: Executes the block if the expression is truthy.
-categories: []
-keywords: []
-action:
-  aliases: []
-  related:
-    - functions/go-template/with
-    - functions/go-template/else
-    - functions/go-template/end
-    - functions/collections/IsSet
-  returnType:
-  signatures: [if EXPR]
----
-
-{{% include "functions/go-template/_common/truthy-falsy.md" %}}
-
-```go-html-template
-{{ $var := "foo" }}
-{{ if $var }}
-  {{ $var }} → foo
-{{ end }}
-```
-
-Use with the [`else`] statement:
-
-```go-html-template
-{{ $var := "foo" }}
-{{ if $var }}
-  {{ $var }} → foo
-{{ else }}
-  {{ print "var is falsy" }}
-{{ end }}
-```
-
-Use `else if` to check multiple conditions.
-
-```go-html-template
-{{ $var := 12 }}
-{{ if eq $var 6 }}
-  {{ print "var is 6" }}
-{{ else if eq $var 7 }}
-  {{ print "var is 7" }}
-{{ else if eq $var 42 }}
-  {{ print "var is 42" }}
-{{ else }}
-  {{ print "var is something else" }}
-{{ end }}
-```
-
-{{% include "functions/go-template/_common/text-template.md" %}}
-
-[`else`]: /functions/go-template/else