Update README.md

Author: ashraf789

README.md

@@ -11,7 +11,7 @@ I have used free OpenVPN configuration file from this site https://www.vpngate.n
 I am not sure how long it will work with the free ovpn file. It's better to update ovpn files with your own ovpn.
 </br></br>
 
-### Instruction to update server list:
+## Instruction to update server list:
 1. Replace/add your .ovpn file with <b> assets/</b> directory .ovpn file
 2. Now go to MainActivity.class and find the "getServerList()" method there you have to update server information.
 3. [!Optional] At Last go to SharedPreference.class and find the "getServer()" method there update default server information.