Build list of recommended GitHub browser extensions that support our model

http://awesomelists.top/ - search for github , compile a more useful list of tools that are well aligned with coala processes , and we can find where to recommend them in the developer docs.

(This is an offshoot of https://gitlab.com/coala/documentation-old/issues/32)

Start with http://awesomelists.top/ and search for GitHub browser extensions. Compare candidate tools with the coala processes described or implied by the repository, then identify the developer documentation location where recommendations belong. Done means a useful, curated list of well-aligned extensions and a clear recommendation location.

Written by the indexing model from the issue text.