Glossary revisions

Extensive revisions to glossary and minor changes to Appendix E and a
couple of other files (adding links)

docs/course_authors/source/appendices/e.rst

@@ -529,6 +529,7 @@ We urge usage of <formulaequationinput />. See the opening paragraphs of the
 
   .. image:: ../Images/numericalresponse5.png
 
+.. _Math Expression Syntax:
 
 Math Expression Syntax
 ----------------------
@@ -788,6 +789,7 @@ XML Attribute Information
   
       \newpage %
 
+.. _Custom Response:
 
 Custom Response
 ===============
@@ -916,6 +918,8 @@ Sample Problem:
   
       \newpage %
 
+.. _Chemical Equation Response:
+
 Chemical Equation Response
 ==========================