Consistent instructions and examples

I started off with "hints" that required the poor student to piece
together the information from incomplete bits. A complete example is
like a picture that is worth 1000 words and far clearer.

14_while4.zig

@@ -1,20 +1,22 @@
 //
-// Continue expressions do NOT execute when a while loop stops
-// because of a 'break' statement.
-//
-// Example:
+// You can force a loop to exit immediately with a "break" statement:
 //
 //     while (condition) : (continue expression){
+//
 //         if(other condition) break;
-//         ...
+//
 //     }
 //
+// Continue expressions do NOT execute when a while loop stops
+// because of a break!
+//
 const std = @import("std");
 
 pub fn main() void {
     var n: u32 = 1;
 
     // Oh dear! This while loop will go forever!?
+    // Please fix this so the print statement below gives the desired output.
     while (true) : (n+=1) {
         if(???) ???;
     }