Added Github Pages link to README.md.

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>
Added sound on/off icon.
- Icons taken from "Web0.2ama" icon pack by chrfb: http://chrfb.deviantart.com/art/Web0-2ama-165156124

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>
Only allow left clicks.

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>