Add README and Templates

[titaniumbones]

Make sure this repo has the following files:

• [x] Readme README.md
  • [x] Repo Badges for: Github Project, Slack, License
  • [x] 1-3 sentence description of repository contents
  • [x] Getting Involved section
  • [x] Development section
• [x] License -- LICENSE
• [x] Contributing Guidelines (minimal and pointing to org-wide) .github/CONTRIBUTING.md
• ~Issue Template -- .github/ISSUE_TEMPLATE.md~ skipping for now
• [x] GitHub Description from 1-3 sentence readme blurb

This issue forms part of a project-wide meta-issue

[dcwalk]

Yay, done!