Simplify comments to be more concise and student-like

- Removed verbose explanations
- Made comments shorter and more casual
- Focus on key concepts rather than formal descriptions

01/Not16.hdl

@@ -12,7 +12,7 @@ CHIP Not16 {
     OUT out[16];
 
     PARTS:
-    // Apply Not gate to each of the 16 bits
+    // Not each bit
     Not(in=in[0], out=out[0]);
     Not(in=in[1], out=out[1]);
     Not(in=in[2], out=out[2]);