Add contributing file (no current issue number to assign to)
Add code of conduct (no issue number currently)
Update README.md

Fixing grammar
Adding project details for clarity.
Merge branch 'patch-1' of github.com:jimarnold/gocd into jimarnold-patch-1

Conflicts:
	README.md
Merge pull request #126 from hammerdr/code-of-conduct

Add code of conduct (no issue number currently)
Merge pull request #125 from hammerdr/contributing-file

Add contributing file (no current issue number to assign to)