style fixes

README.md

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-ansible-role-selinux-disable
+pescobar.selinux_disable
 =========
 
 Very simple role to disable selinux and reboot the machine.
 
-By default the machine is not rebooted unless you define `selinux_reboot: true`
+By default the machine is **not** rebooted unless you define `selinux_reboot: true`
 
 Role Variables
 --------------
@@ -21,7 +21,7 @@ Example Playbook
 
     - hosts: servers
       roles:
-         - { role: pescobar.selinux-disable }
+         - { role: pescobar.selinux_disable }
 
 License
 -------