Merge pull request #2 from alexabbott/alex

Add Alex's comments. Eric's comment.
farhan comment
Merge pull request #3 from alexabbott/Farhan

farhan comment. cool
erics commit
Merge pull request #4 from alexabbott/ericsbranch

erics commit
Add basic rails app
Merge branch 'master' of https://github.com/alexabbott/business_guide into alex