docs: fix incorrect badge links

Author: yoshuawuyts

README.md

@@ -31,10 +31,10 @@ sheetify(path.join(__dirname, 'index.css'), opts)
 
 [0]: https://img.shields.io/badge/stability-experimental-orange.svg?style=flat-square
 [1]: https://nodejs.org/api/documentation.html#documentation_stability_index
-[4]: https://img.shields.io/travis/yoshuawuyts/wayfarer-www/master.svg?style=flat-square
-[5]: https://travis-ci.org/yoshuawuyts/wayfarer-www
-[6]: https://img.shields.io/codecov/c/github/yoshuawuyts/wayfarer-www/master.svg?style=flat-square
-[7]: https://codecov.io/github/yoshuawuyts/wayfarer-www
+[4]: https://img.shields.io/travis/yoshuawuyts/sheetify-cssnext/master.svg?style=flat-square
+[5]: https://travis-ci.org/yoshuawuyts/sheetify-cssnext
+[6]: https://img.shields.io/codecov/c/github/yoshuawuyts/sheetify-cssnext/master.svg?style=flat-square
+[7]: https://codecov.io/github/yoshuawuyts/sheetify-cssnext
 [10]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square
 [11]: https://github.com/feross/standard
 [12]: https://github.com/cssnext/cssnext