diff --git a/README.md b/README.md
index d231987..05a99ad 100644
--- a/README.md
+++ b/README.md
@@ -5,14 +5,16 @@ Yet another chip8 emulator written in rust \o/
 
 ## TODO
 
-Expand on this README
++ Expand on this README
++ Add some documentation
++ Add delay for beeper
++ Fix input
 
 ## System Dependencies
 
 `sdl2` together with its dependencies are required to be installed on your hostmachine.
-On arch-based distros you can use
-`sudo pacman -Syu sdl2 sdl2_gfx sdl2_image sdl2_mixer sdl2_ttf`
-to install them.
+On Arch-based distros you can use these packages:
+`sdl2 sdl2_gfx sdl2_image sdl2_mixer sdl2_ttf`
 
 ## Credits
 
diff --git a/src/processor.rs b/src/processor.rs
index b93734e..6188ce2 100644
--- a/src/processor.rs
+++ b/src/processor.rs
@@ -1,5 +1,3 @@
-// TODO add all comments
-
 extern crate sdl2;
 
 use rand::Rng;
@@ -71,8 +69,10 @@ impl Processor {
 	    }
 
 	    // play sound using sdl2
+	    // TODO
 
 	    // add delay
+	    // TODO
 	}
     }