Update UI text about submitting problems in Ready to Start template

edx_proctoring/templates/proctored_exam/ready_to_start.html

@@ -10,7 +10,7 @@
       {% blocktrans %}
         &#8226; You have {{ total_time }} to complete this exam. </br>
         &#8226; You cannot stop the timer after you start the exam. </br>
-        &#8226; If time expires before you finish the exam, your completed answers will be submitted.
+        &#8226; If time expires before you click <strong>End My Exam</strong>, your submitted answers will be graded. For all question types, you must click <strong>Submit</strong> to submit your answers.
       {% endblocktrans %}</br>
     </p>
     <h3>