Update README.md
Modified two lines in order to get mocha tests to pass.
Merge pull request #9 from natgeo/feature/test_fixes

Modified two lines in order to get mocha tests to pass.
Forgot a zero on the mochaTest options
Separated out root-level Mocha hooks
Merge pull request #12 from natgeo/feature/mocha-root-hooks

Separated out root-level Mocha hooks
merged in fix for hook problems