Updated readme

Added control descriptions and credits

README.md

@@ -10,3 +10,15 @@ The game is built with Event Assembler (EA), Lyn, and the EA Formatting Suite.
 2) Download [Event Assembler](http://feuniverse.us/t/event-assembler/1749), which includes the EA Formatting Suite, and extract it in the "Event Assembler" directory.
 3) Download [Lyn](http://feuniverse.us/t/ea-asm-tool-lyn-elf2ea-if-you-will/2986) and place it in the "Event Assembler/Tools" directory.
 4) Run build.cmd, which will run EA to generate "rom.gba" using "ROM Buildfile.event"
+
+# Controls
+
+- D-pad: Turn Snake. Switch between speeds options in the title screen.
+- Enter: Start game. Pause/Unpause game.
+- Select: Change between titlescreens (only if max score has been reached).
+
+# Credits
+
+- Programming and Tiles: https://github.com/LeonarthCG
+- Title and Victory screens: https://twitter.com/CeciDibujera
+- Testing: Sme and 2wb/eliwan