Change my title
Merge remote-tracking branch 'origin/master'

* origin/master:
  fixed a typo
  added CLI lecture
  added rtools lecture - has user install devtools as well
  added create repo lecture and images
  added intro to git and intro to github lectures plus associated images in assets folder
Start lecture on R Markdown
Three slides on R Markdown
Add hTML and md
Reorganize all content into correct course/module directories
Reorganize a few of Brian's directories
Merge pull request #23 from rdpeng/master

Reorganized all content in to appropriate course/module directories