add contributing.md
update README to reflect CONTRIBUTING.md
change shell to bash
General tidying + version bump.
Token needs to be grabbed before owt else.
Merge pull request #13 from despo/add-contributing.md

Add contributing.md
Updates to contributing.
Updating readme.
Updating readme.
Adding [PR] tag for issues that are pull requests.
Version bump.
Updating readme examples.
Updating another readme typo.
Fixing some broken links in documentation.