Add Twitter link to the README

README.md

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-<img src="https://travis-ci.com/senorprogrammer/wtf.svg?branch=master" /> <a href="https://gitter.im/wtfutil/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge"><img src="https://badges.gitter.im/wtfutil/Lobby.svg" /></a> <a href="#contributors"><img src="https://img.shields.io/badge/all_contributors-27-orange.svg?style=flat-square" /></a>
-
-
-<p align="center">
-  <img src="./docs/img/wtf.jpg?raw=true" title="WTF" width="852" height="240" />
-</p>
+<img src="https://travis-ci.com/senorprogrammer/wtf.svg?branch=master" /> <a href="https://gitter.im/wtfutil/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge"><img src="https://badges.gitter.im/wtfutil/Lobby.svg" /></a> <a href="https://twitter.com/wtfutil"><img src="https://img.shields.io/badge/follow-on%20twitter-blue.svg" /></a> <a href="#contributors"><img src="https://img.shields.io/badge/all_contributors-27-orange.svg?style=flat-square" /></a>
 
 A personal terminal-based dashboard utility, designed for
 displaying infrequently-needed, but very important, daily data.