The following messages and their behavior imply that the documentation location *must* be as a subpage. That is not an approach taken by all wikis, so the location must not be hardcoded this way.
scribunto-doc-subpage-does-not-exist
''Documentation for this module may be created at [[$1]]''
Rename to scribunto-doc-page-does-not-exist
Change the behavior of $1 to be <scribunto-doc-page-name>
scribunto-doc-subpage-header
'''This is the documentation subpage for [[$1]]'''
Rename to scribunto-doc-page-header
Change to '''This is the documentation page for [[$1]]'''
scribunto-doc-subpage-name
doc
Rename to scribunto-doc-page-name
Change to {{FULLPAGENAME}}/doc (alt. $1/doc, if the former wouldn't work)
scribunto-doc-subpage-show
{{$1}} <hr />
Change to scribunto-doc-page-show
Version: unspecified
Severity: normal
Whiteboard: usability