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/Mux8Way16.hdl

@@ -20,7 +20,7 @@ CHIP Mux8Way16 {
     OUT out[16];
 
     PARTS:
-    // Use two Mux4Way16 gates and one Mux16 to select from 8 inputs
+    // Two Mux4Way16 + one Mux16
     Mux4Way16(a=a, b=b, c=c, d=d, sel=sel[0..1], out=tmp1);
     Mux4Way16(a=e, b=f, c=g, d=h, sel=sel[0..1], out=tmp2);
     Mux16(a=tmp1, b=tmp2, sel=sel[2], out=out);