Update README.md

Author: ozMod

README.md

@@ -4,7 +4,7 @@
  ![image](https://user-images.githubusercontent.com/80401984/145401480-8910961b-c909-4130-b827-a636db62d778.png)
  # How it works?
   The menu will execute our native method Start in our Java part. Then, native method will create GLSurfaceView with WindowManager (yes, this is the way to implement window overlay mod menus internally). 
-  # How to implement
+  # How to inject
   You need to add following line in ```com/unity/player/UnityPlayerActivity```:
 
    ```invoke-static {p0, p1}, Landroidx/viewbinding/systemui/SystemOverlaySurface;->Start(Landroid/app/Activity;Lcom/unity3d/player/UnityPlayer;)V```