Removed wrong dependency injection note, added hint for dependency injections

Using-ACF.md

@@ -36,7 +36,8 @@ First you need to create a class that extends `BaseCommand`, then register that
 manager.registerCommand(new MyCommand());
 ```
 
-If you need your plugin instance, pass it to your commands constructor like so (this is called dependency injection if you are not aware)
+If you need your plugin instance, pass it to your commands constructor like so.
+Take note that there is another possibility to use objects in your command class with [dependency injections](https://github.com/aikar/commands/wiki/Dependency-Injection).
 
 ```java
 manager.registerCommand(new MyCommand(myPlugin));