[Ignore]: Theme Compatibility & Template Files

[imath]

Link to the existing BP Codex page.

https://codex.buddypress.org/themes/theme-compatibility-1-7/a-quick-look-at-1-7-theme-compatibility/

Why should we ignore this page?

It mainly duplicates with #247 and can be ignored.

Tasks to accomplish

• This task has been added to the "Todo" panel of the Documentation project.
• The corresponding line of the data/README.md Pages list has been marked as "Ignore issue/task created".
• One of the BuddyPress Core committer reviewed it and agreed to ignore this Codex page.
• The task was moved to the "Done" panel of the Documentation project.