Merge pull request #53 from jesseward/centos6-redis-fix

CentOS_6.md : missing a "service redis start"

Author: NARKOZ

install/CentOS_6.md

@@ -94,6 +94,7 @@ Just make sure it is started at the next reboot
 *logged in as root*
 
     chkconfig redis on
+    service redis start
 
 ## Configure mysql
 Make sure it is started at the next reboot and start it immediately so we can configure it.