docs: grammar: user management

Minor grammar changes for the User Management page

docs-en/13-operation/06-admin.md

@@ -2,7 +2,7 @@
 title: User Management
 ---
 
-System operator can use TDengine CLI `taos` to create or remove user or change password. The SQL command is as low:
+A system operator can use TDengine CLI `taos` to create or remove users or change passwords. The SQL commands are documented below:
 
 ## Create User
 
@@ -10,7 +10,7 @@ System operator can use TDengine CLI `taos` to create or remove user or change p
 CREATE USER <user_name> PASS <'password'>;
 ```
 
-When creating a user and specifying the user name and password, password needs to be quoted using single quotes.
+When creating a user and specifying the user name and password, the password needs to be quoted using single quotes.
 
 ## Drop User
 
@@ -18,7 +18,7 @@ When creating a user and specifying the user name and password, password needs t
 DROP USER <user_name>;
 ```
 
-Drop a user can only be performed by root.
+Dropping a user can only be performed by root.
 
 ## Change Password
 
@@ -26,7 +26,7 @@ Drop a user can only be performed by root.
 ALTER USER <user_name> PASS <'password'>;
 ```
 
-To keep the case of the password when changing password, password needs to be quoted using single quotes.
+To keep the case of the password when changing password, the password needs to be quoted using single quotes.
 
 ## Change Privilege
 
@@ -36,7 +36,7 @@ ALTER USER <user_name> PRIVILEGE <write|read>;
 
 The privileges that can be changed to are `read` or `write` without single quotes.
 
-Note：there is another privilege `super`, which not allowed to be authorized to any user.
+Note：there is another privilege `super`, which is not allowed to be authorized to any user.
 
 ## Show Users
 
@@ -45,6 +45,6 @@ SHOW USERS;
 ```
 
 :::note
-In SQL syntax, `< >` means the part that needs to be input by user, excluding the `< >` itself.
+In SQL syntax, `< >` means the part that needs to be input by the user, excluding the `< >` itself.
 
 :::