Merge pull request #1 from chaddcw/master

Add prelim instructions!
Update README.md

added URL for GitHub's Fork A Repo page
Update README.md

added branching to this exercise
Update README.md

fixed formatting.
Update README.md

added CodeSchool Git exercise
Update README.md
Update README.md
Update README.md

updated links. better explanation of origin and upstream
Update README.md to remove Windows references
removed some prelimary work
Update README.md
fixed upstream command
Update README.md

clean up the merge description
Update README.md

added PUNetID so everyone has a unique branch!
Update README.md

cleaned up some description of the pull request/branch
Update README.md

update origin and upstream definitions
Update README.md

added note about copy and paste of " and removed ! from commit messages on the command line. The ! can give issues on the command line.
Added a movie to dataFile.md
Merge pull request #19 from littlefiredragon/master

Added a movie to dataFile.md
added a different favorite movie