Fixed revoke command.

Author: RaccoonDev

044_postgres/15_users/README.md

@@ -23,7 +23,7 @@ GRANT ALL PRIVILEGES ON DATABASE company to james;
 
 ## revoke privileges
 ```
-REVOKE ALL PRIVILEGES ON DATABASE company to james;
+REVOKE ALL PRIVILEGES ON DATABASE company from james;
 ```
 
 ## alter
@@ -38,4 +38,4 @@ ALTER USER james WITH NOSUPERUSER;
 ## remove
 ```
 DROP USER james;
-```
+```