* begin readme
* add common bugs
* include more details for third party readme
* patch diff
* add readme
* complete readme
* Merge branch 'master' into third-party-readme
* rev
* Merge branch 'third-party-readme' of github.com:prysmaticlabs/prysm into third-party-readme
* revert
* Update third_party/README.md
* Update third_party/README.md