fixed twitter badge

Author: John Doherty

README.MD

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 # selenium-cucumber-js
 
-[![Shippable branch](https://img.shields.io/shippable/5818b23bbd56670e00037040/master.svg)](https://app.shippable.com/projects/5818b23bbd56670e00037040) [![npm](https://img.shields.io/npm/dt/selenium-cucumber-js.svg)](https://www.npmjs.com/package/selenium-cucumber-js) [![Twitter Follow](https://img.shields.io/twitter/follow/CambridgeMVP.svg?style=social&label=Twitter&style=plastic)](https://twitter.com/CambridgeMVP)
+[![Shippable branch](https://img.shields.io/shippable/5818b23bbd56670e00037040/master.svg)](https://app.shippable.com/projects/5818b23bbd56670e00037040) [![npm](https://img.shields.io/npm/dt/selenium-cucumber-js.svg)](https://www.npmjs.com/package/selenium-cucumber-js) [![Twitter Follow](https://img.shields.io/twitter/follow/MrJohnDoherty.svg?style=social&label=Twitter&style=plastic)](https://twitter.com/MrJohnDoherty)
 
 JavaScript browser automation framework using official [selenium-webdriver](http://seleniumhq.github.io/selenium/docs/api/javascript/ "view webdriver js documentation") and [cucumber-js](https://github.com/cucumber/cucumber-js "view cucumber js documentation").