diff --git a/README.md b/README.md
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@@ -1,3 +1,16 @@
 # godot_key_extract
 
 extracts the secret key used to encrypt gdscript files upon build
+
+
+
+## how to use?
+download or [build](https://github.com/pozm/godot_key_extract#build) the dll, then use your favourite dll injector to inject the dll into the godot game.
+
+examples of dll injectors:
+
+• [extreme injector](https://github.com/master131/ExtremeInjector)
+
+
+## build
+clone the repo (git clone https://github.com/pozm/godot_key_extract.git) then open the visual studio workspace and then build either release or debug, probably doesn't matter.