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/DMux4Way.hdl

@@ -14,7 +14,7 @@ CHIP DMux4Way {
     OUT a, b, c, d;
 
     PARTS:
-    // Use two levels of DMux: first level splits by sel[1], second level splits by sel[0]
+    // Two levels of DMux
     DMux(in=in, sel=sel[1], a=tmp1, b=tmp2);
     DMux(in=tmp1, sel=sel[0], a=a, b=b);
     DMux(in=tmp2, sel=sel[0], a=c, b=d);