* Add 80 character linewrap
* Expand the contributing guide [ci skip]
This commit includes a couple of expansions on the contributing guide
including some notes concerning documentation and the code of conduct.
There are also some small mechanical fixes and a link or two was fixed.
* Add views count for authenticated users articles [#4250]
* Bump API version to 0.5.6 [#4250]
* Add info about bumping API docs version requirement
* Fix Create pull request link by linking to the docs
The links work fine with viewed in the Contributing
section in the README, but don't work when viewing
the CONTRIBUTING file itself in GitHub. This just
adds the full URLs for some links.
