Template:Template link with title with subst

{{subst:[[Template:{{{1}}}|{{{1}}}]]{{#if: ||{{{par}}}}}{{#if: ||{{{par2}}}}}}}

File:Test Template Info-Icon - Version (2).svg Template documentationcreatepurge

Editors can experiment in this template's sandbox (create | mirror) and testcases (create) pages.
Add categories to the /doc subpage. Subpages of this template.