From Tales of Maj'Eyal
w/r/t using these templates transcluded in pages: We could? can? use the <includeonly> tags to make sure no whitespace ends up in them by mistake.
Nevermind the above, that's incorrect. From wikimedia:
- Anything between <noinclude> and </noinclude> will be seen only when the template's page is being viewed directly, but not when it is included in another page.
- Likewise, anything between <includeonly> and </includeonly> will be processed and displayed only when the page is being included, but not when the template page is being viewed directly
- Everything outside <noinclude> and <includeonly> tags is processed and displayed normally; that is, both when the template page is being viewed directly and when the template is included in another page.