Edit FAQ to add scoring rule with last submission

Author: hoangvu5

src/core/templates/core/faq.html

@@ -228,7 +228,8 @@ <h5 class="mb-0">How does scoring work?</h5>
           Teams are ranked by the number of questions they have solved. If multiple teams have answered the same
           number
           of questions, then they are ranked by a point system based on least total time to submit a correct solution
-          for the questions, as well as fewest attempts to get the correct solution.
+          for the questions, as well as fewest attempts to get the correct solution. If multiple teams have the same 
+          number of questions solved and points, then they are ranked by time of their last submission.
         </p>
         <p>
           You receive points when you successfully solve a problem, and the amount of points is based on how many