Merge pull request #85 from edx/cdodge/fix-typos

fix typos

edx_proctoring/templates/proctoring/seq_proctored_exam_instructions.html

@@ -36,12 +36,12 @@
     </p>
     <p>
       {% blocktrans %}
-        3. Keep the proctoring sesion window open while you are taking the exam. If you close it, the proctoring recording is stopped and you will not successfully complete the proctored exam.
+        3. Keep the proctoring session window open while you are taking the exam. If you close it, the proctoring recording is stopped and you will not successfully complete the proctored exam.
       {% endblocktrans %}
     </p>
     <p>
       {% blocktrans %}
-        4. Return to the {{platform_name}} courseware to start your exam
+        4. Return to the {{platform_name}} courseware to start your exam.
       {% endblocktrans %}
     </p>
   </div>