diff --git a/readme.md b/readme.md
index d7527b1..7985bcb 100644
--- a/readme.md
+++ b/readme.md
@@ -2,8 +2,18 @@
 
 an untitled 2d multiplayer shooter for the gameboy
 
+i don't know what i'm doing
+
 ## compile
 
+first clone submodules:
+
+```
+git submodule init && git submodule update
+```
+
+and then compile the game
+
 ```
 make all
 ```