Merge pull request #2509 from T1mL3arn/patch-1

Fix little formatting typo in 1.2.13 (loops)

Author: iliakan

1-js/02-first-steps/13-while-for/article.md

@@ -318,7 +318,7 @@ alert('Done!');
 
 We need a way to stop the process if the user cancels the input.
 
-The ordinary `break` after `input` would only break the inner loop. That's not sufficient--labels, come to the rescue!
+The ordinary `break` after `input` would only break the inner loop. That's not sufficient -- labels, come to the rescue!
 
 A *label* is an identifier with a colon before a loop:
 ```js