updates to slides, exercises, and code alongs for lesson 3
added index for lesson 3 slide
updates to lesson 3 slides
Fixing errors
Removing resources from main index
Merge pull request #10 from bswinnerton/lesson_3_pull_request

Lesson 3 pull request
Adding links to resources
Making array exercises a little bit more descriptive
updated hashes slide
Merge pull request #11 from bswinnerton/lesson_3_pull_request

Making ex_array.rb more descriptive and adding links in slides
Merge branch 'master' of https://github.com/sansari/BEWDiful_Students