Update tutorial-discover-mysql-database-instances.md

Update to MySQL commands.

Author: Molishv

articles/migrate/tutorial-discover-mysql-database-instances.md

@@ -58,14 +58,15 @@ The following table lists the regions that support MySQL Discovery and Assessmen
    > - Ensure that the user corresponding to the added MySQL credentials have the following privileges: 
    >    - Select permission on information_schema tables.
    >    - Select permission on mysql.users table.
+   > - For MySQL discovery, ensure the appliance's IP or domain is allowed by configuring the necessary firewall rules and MySQL user privileges. The bind-address in my.cnf should also be set to allow external connections if needed.
    
    > - Use the following commands to grant the necessary privileges to the MySQL user
    > ```
-   >  GRANT USAGE ON *.* TO 'newuser'@'localhost';
-   >  GRANT PROCESS ON *.* TO 'newuser'@'localhost';
-   >  GRANT SELECT (User, Host, Super_priv, File_priv, Create_tablespace_priv, Shutdown_priv) ON mysql.user TO 'newuser'@'localhost';
-   >  FLUSH PRIVILEGES; 
-
+   >  GRANT USAGE ON *.* TO 'username@ip';
+   >  GRANT PROCESS ON *.* TO 'username@ip';
+   >  GRANT SELECT (User, Host, Super_priv, File_priv, Create_tablespace_priv, Shutdown_priv) ON mysql.user TO 'username@ip';
+   >  GRANT SELECT ON information_schema.* TO 'username@ip';
+   >  GRANT SELECT ON performance_schema.* TO username@ip';  
 
 You can review the discovered MySQL databases after around 24 hours of discovery initiation, through the **Discovered servers** view.