1. Copied over content from existing rst/community.rst page (which will be refactored once all these pages are in.)
2. For features, pointed to the Proposals section, which we should probably leave in ansible/proposals, where it is actively used.
* Added placeholder topics for community info
* Setup community section index.
* Initial move of triage process docs.
* Typo/test
* Removed triage topic from index.
