Create Help site using bookdown, incl How to FERC

[bbest]

Use bookdown to create website at mhk-env.us/help

[bbest]

Createdhttps://github.com/mhk-env/help, which gets rendered here:
https://mhk-env.github.io/help

[bbest]

TODO:

• cleanup demo with MHK-Env content
• See auto-build (Travis-CI) suggestions here: https://bookdown.org/yihui/bookdown/github.html

[bbest]

To fold in later possibly: “How to” find and download new FERC documents for new projects: - Google Docs