Fixbug, not location supervisor file in init.d
root@front1:~# ls /etc/init.d/supervisord
ls: cannot access /etc/init.d/supervisord: No such file or directory
root@front1:~# ls /etc/init.d/supervisor
/etc/init.d/supervisor
Fix example used class on README
Merge pull request #1 from avelino/master

Fixbug, not location supervisor file in init.d