feat: better fixes

src/chip8.rs

+use std::fmt::Display;
+
 use getrandom::getrandom;
 
 #[cfg(feature = "web")]
@@ -299,5 +301,7 @@ impl Default for Chip8 {
 }
 
 impl Display for Chip8 {
-
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "pc: {}", self.pc)
+    }
 }

src/lib.rs

-mod chip8;
+pub mod chip8;