Merge pull request #7 from blehman/master

adding files for topic modeling
Small edits to output
initial regex-101 commit (WIP)
remove extra log
continue work on regex rst
finish first draft
update readme
readme
add website with regex examples
panda
panda
formatting
better pandas
still moving pandas
put refs in the appendix
readme formatting
readme appearance
remove all -e options from grep use for consistency
Merge pull request #8 from jrmontag/master

added regular expression 101 session
touch READMEs where they don't exist