Add CONTRIBUTING badge to repo

[ruebot]

http://img.shields.io/badge/CONTRIBUTING-Guidelines-blue.svg

For example, we will use:
[![Contribution Guidelines](http://img.shields.io/badge/CONTRIBUTING-Guidelines-blue.svg)](./CONTRIBUTING.md)

... which yields ...

Repositories:

• https://github.com/Islandora-CLAW/pdx
• https://github.com/Islandora-CLAW/chullo/
• https://github.com/Islandora-CLAW/claw-docker
• https://github.com/Islandora-CLAW/claw-docker-islandora-karaf-components
• https://github.com/Islandora-CLAW/claw-docker-fedora
• https://github.com/Islandora-CLAW/claw-docker-blazegraph
• https://github.com/Islandora-CLAW/claw-docker-maven
• https://github.com/Islandora-CLAW/claw-docker-solr
• https://github.com/Islandora-CLAW/claw-docker-tomcat
• https://github.com/Islandora-CLAW/claw-docker-karaf
• https://github.com/Islandora-CLAW/claw-docker-all-in-one
• https://github.com/Islandora-CLAW/claw-ansible
• https://github.com/Islandora-CLAW/claw-docker-oracle-jdk
• https://github.com/Islandora-CLAW/claw-docker-open-jdk
• https://github.com/Islandora-CLAW/claw-docker-mariadb
• https://github.com/Islandora-CLAW/claw-docker-islandora
• https://github.com/Islandora-CLAW/claw-docker-drupal
• https://github.com/Islandora-CLAW/claw-docker-base
• https://github.com/Islandora-CLAW/islandora
• https://github.com/Islandora-CLAW/Alpaca

[ruebot]

Partially addressed with: islandora-deprecated/pdx@26321e2

[ruebot]

Addressed with:

• Islandora/chullo@9f0a27f
• Islandora/Alpaca@bb42290
• c0b17de
• islandora-deprecated/claw-docker-fedora@3538fe6
• islandora-deprecated/claw-ansible@4072dc2
• islandora-deprecated/claw-docker-all-in-one@9180971
• islandora-deprecated/claw-docker-oracle-jdk@3192d9e
• islandora-deprecated/claw-docker-base@bb78f8a
• islandora-deprecated/claw-docker-drupal@1d9e10c
• islandora-deprecated/claw-docker-mariadb@b788b43
• islandora-deprecated/claw-docker-islandora@3156200
• islandora-deprecated/claw-docker-islandora-karaf-components@6265643
• islandora-deprecated/claw-docker-karaf@6790da1
• islandora-deprecated/claw-docker-maven@d5b7e7d
• islandora-deprecated/claw-docker-solr@89052cd
• islandora-deprecated/claw-docker-tomcat@e780906
• islandora-deprecated/claw-docker-blazegraph@52e0022
• islandora-deprecated/claw-docker@ed74dd2

[sowla]

@ruebot, sorry if I'm creating more work for you! Is there a way to edit all the files then create a single pull request?

[ruebot]

@sowla nah, you're all good. Since everything is in separate repos, it'll be a pull request for each repo.

[ruebot]

All done. Thank you very much @sowla!

[sowla]

You're very welcome :) Thank you too @ruebot for your patience with my newbie mistakes! :)

[manez]

@sowla this is great! We're always glad to see new contributors, and man did you hit the ground running 😃

[sowla]

Thank you @manez! :) I started learning to code about two weeks ago, so there are very very few projects I can contribute to.. I was very excited to see this issue! ;P

[ruebot]

Islandora/Crayfish#11

[whikloj]

Fully resolved with Islandora/Crayfish@22e0c0e