text: Title: Documentation README
  Body: ### Proposal
  
  Develop a documentation contribution guideline modeled after [pandas](https://github.com/pandas-dev/pandas/blob/master/doc/README.rst)
  
  Documentation is often seen as a safe place for new contributors to start, but Sphinx and reStructured text can be intimidating at first. The goal of the readme would be to creating an inviting document that gives a high level of how to build the docs, where to find rst documentation, how and when to use the `plot::` directive, and give some direction towards some concrete issues to tackle (ie the novice and doc tags in the issue list).
  
  Relates to issues #353 , #354  and PR #446 