Small typo changes

Just trying to make the world a little bit better. :)
Merge pull request #1 from suite22/patch-1

Small typo changes
examples and updates for Week 2, malformed Stack layout example
fixed stack layout
add zoom interaction, FinalProject, Deliverables...
Merge branch 'master' of https://github.com/hustonhedinger/IntroToDataViz
slides
derek project link

updated deliverables with project link - derek
Merge pull request #2 from derekwmiller/master

derek project link
New files from Class 2