Branch for authoring
#2070: Set up authoring environment - test build on branch
#2070: Set up authoring environment - set up author disqus
#2120
Introduction chapter and update TOC - edited content of intro to explain document contents.
#2120
Introduction chapter and update TOC - restructured TOC to match document plan - only deleted LifeStuff.md link - empty topic
#2120
Introduction chapter and update TOC - updated TOC to use latest headings from document plan
#2120
Introduction chapter and update TOC - renamed topic
#2120
Introduction chapter and update TOC - deleted empty topic
#2120
Introduction chapter and update TOC - move intro.md topic to another folder and renamed it to README.md
#2120
Introduction chapter and update TOC - restructuring for new TOC
#2120
Introduction chapter and update TOC - replace a folder with another rename does not work on GitHub folders.
#2120
Introduction chapter and update TOC - Changed README.md with peer review comment from disqus.
#2120
Introduction chapter and update TOC - updated with SME review comments CL#7 and CL#8
#2116
What is it - chapter - updated what_it_is/README.md with new content CL#2 - Move content from what_it_is/README.md to another topic.
Merge from author to staging

#2120 - Introduction chapter and update TOC

Conflicts:
	README.md
	how_it_works/README.md