Fix misspellings/grammar in README
Add dependency install instructions for OsX
Merge pull request #7 from Coornail/osx-build-instructions

Add dependency install instructions for OsX
Merge pull request #6 from davertron/master

Fix misspellings/grammar in README
Fix spelling mistakes in README.md
Fix cmake link in README
Merge pull request #9 from yesmeck/patch-1

Correct cmake link in README
Merge pull request #8 from mmcdole/patch-1

Fix spelling mistakes in README.md