Template:include/doc
From cppreference.com
{{include| location| param1 (optional)| param2 (optional) ...}}
- Includes the template from location and adds an edit link. Use this template whenever using an some templated content that occupies full width of the page. The unnamed parameters param1, param2, ... are passed to the template.
[edit] Implementation templates
{{include editlink| location}}
- Adds an edit link to a template.