Add a missing 0

Author: duianto

5-regular-expressions/09-regexp-groups/1-find-webcolor-3-or-6/task.md

@@ -8,7 +8,7 @@ let reg = /your regexp/g;
 
 let str = "color: #3f3; background-color: #AA00ef; and: #abcd";
 
-alert( str.match(reg) ); // #3f3 #AA0ef
+alert( str.match(reg) ); // #3f3 #AA00ef
 ```
 
 P.S. This should be exactly 3 or 6 hex digits: values like `#abcd` should not match.