New README.md!!
Change WTFPL logo type

* old
    + http://www.wtfpl.net/wp-content/uploads/2012/12/wtfpl-badge-1.png
* new
    + http://www.wtfpl.net/wp-content/uploads/2012/12/wtfpl-badge-4.png
Tweak "(" and ")" string
Merge pull request #8 from Vagrants/write-README

New README.md!!