Merge pull request #68 from luznlun/master

finish issue #63, replace youtube with Twiiter. Can you send me your real name via email so I cna update your score?
Revert "finish issue #63, replace youtube with Twiiter"
Merge pull request #69 from cpollett/revert-68-master

Revert "finish issue #63, replace youtube with Twiiter"
Update README.md
fix the build error, now youtube button is replaced with Twitter. It will search the title name upon click.