Update README.md
Update README.md
Update README.md
fix css
Merge pull request #4 from gopher-snakes-2013/fix-css

fix css
.textContent has better cross-browser compatibility than .textContent, which is not implemented in e.g. Gecko (FF's browser engine)
Merge pull request #5 from gopher-snakes-2013/reliable_cross_browser_support

.textContent has better cross-browser compatibility than .textContent, w...
fix merge conflicts
fix css