updated some css
Merge pull request #16 from eunicekokor/master

updated some css
Merge branch 'master' of https://github.com/oh-columbia-5/oh-columbia-5.github.io

pulling
Merge pull request #17 from jameslinjl/master

changed version control definition
changed cloning definition and link
Merge pull request #18 from jzf2101/master

changed cloning definition and link
Merge branch 'master' of https://github.com/oh-columbia-5/oh-columbia-5.github.io

pulling from master
added fork situation