Update README.md

README.md

@@ -1,4 +1,28 @@
 Chip8
 =====
 
-CHIP 8 emulator written in C
+CHIP 8 emulator written in C.
+
+Instructions
+============
+You need SDL library to run this program. Compile emulator using `gcc -lSDL chip8.c -o chip8`.
+
+Key bindings
+============
+You can modify all key bindings in chip8.h file.
+
+Key | Action
+----|-------
+p   | Pause/unpause
+b   | Toggle debugging
+i   | Output emulator info (registers, etc.) to the console
+n   | Execute next instruction (while in pause mode)
+h   | Halt the emulator
+
+Keyboard
+========
+Chip8 was using hex keyboard, which isn't available now. Instead use 1-4, q-r, a-f, z-v for input.
+
+Bugs & problems
+===============
+Please report any bugs & problems in the issues section! This will help me improve the emulator