implicit custom user

Author: eoghanteamblue

docs/hypernode-platform/mysql/how-to-use-mysql-on-hypernode.md

@@ -196,12 +196,12 @@ TABLE="core_url_rewrite"
 mysql "$DATABASE" -e "TRUNCATE TABLE $TABLE"
 ```
 
-## Changing the Authentication Plugin for a MySQL User
+## Changing the Authentication Plugin for a Custom MySQL User
 
 Some MySQL features and upgrades require that users use a supported authentication plugin.
 For example, newer MySQL versions no longer support `mysql_native_password` by default.
 
-To change the authentication plugin for an existing user to the recommended `caching_sha2_password` plugin, first log in to MySQL:
+To change the authentication plugin for an existing CUSTOM user to the recommended `caching_sha2_password` plugin, first log in to MySQL:
 
 ```bash
 mysql
@@ -219,8 +219,6 @@ For example, to update a custom user for all hosts:
 ALTER USER 'someuser'@'%' IDENTIFIED WITH caching_sha2_password BY 'new_secure_password';
 ```
 
-After changing the plugin, update your `.my.cnf` (or any other configuration files) to reflect the new password.
-
 ## Changing Your Password
 
 How you change the database password depends on what version of MySQL you are running on your Hypernode.