Add jekyll read-the-docs

[j23414]

• https://github.com/j23414/jekyll_rtd

or rst, or ascii-docs. Review which one to pic

[j23414]

Picked "jekyll RTD" since a good proportion of team knows markdown, but not necessarily rst. Ascii-doc requires a local install, generate pages, and push.

[j23414]

Draft: https://isugifnf.github.io/polishCLR/

Wait for larger discussion on level of detail, scope, and organization.

[j23414]

@Astahlke @Sivanandan any edits pending?

[j23414]

Closing this since Jekyll Read-The-Docs has been live for a while. We can post new issues and PRs to propose and merge new edits to the documentation.