Updated README

Author: hipertracker

README.md

@@ -27,7 +27,6 @@ open http://localhost:3000
 ### Dev tools
 
 * [Flow]((http://flowtype.org/)) - a static type checked for JavaScript
-* [Flowcheck.js](http://gcanti.github.io/flowcheck/) - Runtime type checking for Flow
 * [React Developer Tools](https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi) (Chrome extension)
 
 ### Data workflow