Update exercise3.html

exercises/exercise3/exercise3.html

@@ -34,7 +34,7 @@
       //Soo 2017 - Display a list of all movies that came out in 2017 sorted alphabetically by movie title. Output: <movie_title> (<year>)
       function soo2017() {}
 
-      //Movie Count - Display the number of movies that were released each year. Output: <year>: <number_of_movies>
+      //Movie Count - Display the number of movies that were released each year. Output: <year> : <number_of_movies>
       function movieCount() {}
 
       //Function that converts arrays into seperate HTML list elements. (Hint: Use this!)