Update task.md

Wording / punctuation change.

Author: paroche

1-js/06-advanced-functions/10-bind/4-function-property-after-bind/task.md

@@ -4,7 +4,7 @@ importance: 5
 
 # Function property after bind
 
-There's a value in the property of a function. Will it change after `bind`? Why, elaborate?
+There's a value in the property of a function. Will it change after `bind`? Why, or why not?
 
 ```js run
 function sayHi() {