Update README.md

README.md

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-# chip8sharp-unity
+# chip8sharp-unity
+A CHIP-8 emulator built in Unity. Configured to work with PC, Mac, Linux Standalone and WebGL. Some ROMs come preloaded and on standalone versions you can upload any of you own ROMs.
+
+![Game](https://user-images.githubusercontent.com/26587807/95029009-806a5e80-067f-11eb-8c92-e64e1e3dbb6a.PNG)
+
+## Input
+Requires keyboard and mouse. Press "esc" or "backspace" to exit a game and be brought back to the title screen. 
+
+Chip 8 keypad to keyboard controls:
+
+![Controls](https://user-images.githubusercontent.com/26587807/95028970-2bc6e380-067f-11eb-8607-e6a88a8e88ff.PNG)
+
+Touch controls can easily be added by implementing an IUserInput interface.
+
+## Unit Tests
+Using Unity's TestRunner, unit tests were created to test every opcode.
+
+![Unity](https://user-images.githubusercontent.com/26587807/95028974-2f5a6a80-067f-11eb-8903-8de62ce2670c.PNG)
+
+## 3rd Party Packages
+I use SimpleFileBrowser to handle selecting ROM files for standlone version: https://github.com/yasirkula/UnitySimpleFileBrowser