Update README.md
Update README.md
Merge branch 'hotfix/0.1.20'

* hotfix/0.1.20:
  update all grunt packages
Merge branch 'master' of github.com:fixate/generator-fixate-pw

* 'master' of github.com:fixate/generator-fixate-pw:
  Update README.md
  Update README.md
don't worry about ignoring Soucejs anymore
bump version to 0.1.20
bump version to 0.1.21
use latest version of grunt
Merge branch 'hotfix/0.1.21' into develop

* hotfix/0.1.21:
  use latest version of grunt
  bump version to 0.1.21
  bump version to 0.1.20
  don't worry about ignoring Soucejs anymore
  Update README.md
  Update README.md