Merge pull request #3 from mjhea0/master

updates
cleaned up a bit
More work on part 2
added explanation for models section
added local migrations section to part 2
added sqlalchemy URIs to config
forgot to add new librarys to requirments file
cleaned up part2 md
started part3
added basic template to index route
created based wordcounter
added libraries to requirments.txt
cleaned up part 2 a bit
revised part2.md