Fixed bug in command line parsing
Adding mhenderson nltk example
Merge branch 'master' of https://github.com/mas-dse/DSE200-notebooks
Fixing name of mhenderson notebook
Merge branch 'master' of https://github.com/mas-dse/DSE200-notebooks
Data analysis section of homework 4
exercises 04
04_exercises
Merge branch 'master' of https://github.com/mas-dse/DSE200-notebooks
Finished.