reordering the crate and addind more documentation and added the docs to the same repo

Examples/Arduboy-Tutorials/demo3/src/lib.rs

@@ -2,6 +2,7 @@
 //Include the Arduboy Library
 //Initialize the arduboy object
 use arduboy_rust::prelude::*;
+const arduboy: Arduboy2 = Arduboy2::new();
 //Initialize our counter variable
 #[allow(non_upper_case_globals)]
 static mut counter: c_int = 0;