marking for later reference

no test code added -- not adding duplicate tests; main part is tested in
logic already
Revert "marking for later reference"

This reverts commit 15281f0b3fb0518be75885fa2ce8eb00eb5d4a6e.
Clean up InstructorCourseAddAction class
Mentioned 'GitHub flow' in the process.md
Merge remote-tracking branch 'origin/master' into Issue-1809
Remove redundant comments
Change variable name to be more meaningful
Remove redundant comments to distinguish between course detail and summary
Format and delete comments
Add comment about coverage, remove redundant variable
[1809] Clean up InstructorCourseAddAction

fixes #1809