adding images to assets folder for lesson 7
adding lesson 8 folder and assets
Adding lesson 9 folder
updating assets folder
Update install_instructions.md

removed $ for prompts... confused people.
Merge remote-tracking branch 'upstream/master'
Removing extra install_instructions
Adding answers to lesson 1 exercises
Updating slides to have links to answers
Creating homepage
Merge pull request #6 from bswinnerton/master

Adding answers
Merge pull request #7 from bswinnerton/gh-pages

Adding homepage
Merge branch 'master' into gh-pages
added code-alongs and exercises for lesson 2
Adding html for easy navigation
added code-alongs and exercises for lesson 2
add slides for lesson 2
Merge branch 'master' into gh-pages
added homework for lesson 2
Lesson 2 answers