update readme, added super duper mega simple collision detection

README.md

@@ -1 +1,20 @@
-It time for me to learn Rust, and why not try to make a simple Super Mario Bros clone, called Super Matte Bros. Run Matte, RUN!
+# Super Matte Bros
+
+It time for me to learn Rust, and why not try to make a simple Super Mario Bros clone, called Super Matte Bros. Run Matte, RUN!
+
+
+## Install
+
+### OS X
+
+```shell
+$ curl -s https://static.rust-lang.org/rustup.sh | sudo sh
+$ brew install sdl2
+```
+
+
+## Run
+
+```shell
+$ cargo run
+```