The CONTRIBUTING.md file must be located in the root directory of a
project (or within a .github directory) in order to be recognized by
GitHub and presented to users during the process of filing an issue
or pull request. It doesn't do any good within the docs/ directory.
This doc was originally transcribed from #511, then moved to the wiki,
then moved here. Removing it now as (a) it's not clear this is of value to
anyone other than the original author and (b) this approach is not
necessarily something we want to advertise or promote.