Minor text editing.

[nerdery-isaac]

Minor gramatical edits.

[tonyarnold]

Thanks, @nerdery-isaac — we're in the process of putting together a new release, with updated release notes. Could you have a look in the develop branch (which has an updated README) and propose changes there?

For future reference, please don't submit pull requests against the master branch — we do all of our active development in the develop branch, and only merge changes into master when they're ready for release. Thanks again!