Fixes to improve help experience& correct HTML build errors

docs/en_us/course_authors/source/building_course/export_import_course.rst

@@ -8,9 +8,10 @@ You can :ref:`Export a Course` and :ref:`Import a Course` through Studio.
 
 .. _Export a Course:
 
-*************** 
+***************
 Export a Course
 ***************
+
 There are several reasons you may want to export your course:
 
 * To save your work

docs/en_us/course_authors/source/content_experiments/content_experiments_configure.rst

@@ -26,14 +26,17 @@ To enable content experiments in your course, you add ``split_test`` to the
   ``split_test`` is the internal edX Platform name for a content experiment.
 
 #. From the **Settings** menu, select **Advanced Settings**.
+
 #. On the **Advanced Settings** page, locate **Advanced Modules List**.
-#. In the **Advanced Modules List** field, add ``"split_test"``. Be sure that 
-you include the double quotation marks.
+
+#. In the **Advanced Modules List** field, add ``"split_test"``. Be sure that
+   you include the double quotation marks.
 
    If you have multiple values, ensure that they are separated by commas
    (``,``).
 
-   For example, the text in the **Advanced Modules List** field may resemble the following:
+   For example, the text in the **Advanced Modules List** field may resemble
+   the following:
 
    .. code-block:: json
      

docs/en_us/course_authors/source/developing_course/course_components.rst

@@ -225,8 +225,8 @@ component.
 .. image:: ../Images/AddNewComponent.png
   :alt: Image of adding a new component
 
-For more information, see the documentation for the specific component type that
-you want:
+For more information, see the documentation for the specific component type
+that you want:
 
 - :ref:`Working with Discussion Components`
 - :ref:`Working with HTML Components`
@@ -298,12 +298,10 @@ The following example shows the student view of the unit described above:
 .. image:: ../Images/nested_components_student_view.png
  :alt: Image of the student's view of nested components
 
-.. note:: 
- The visibility of nested components depends on the visibility of the
- parent unit. The parent unit must be public for students to see nested
- components. For more information, see :ref:`Visibility of Components
- Contained by Other Components`.
-
+.. note:: The visibility of nested components depends on the visibility of 
+ the parent unit. The parent unit must be public for students to see nested
+ components. For more information, see :ref:`Visibility of Components Contained
+ by Other Components`.
 
 
 *******************************

docs/en_us/course_authors/source/getting_started/glossary.rst

@@ -442,11 +442,13 @@ The page in the learning management system that shows students their scores on g
 
 .. _Public Unit:
  
-**Public Unit**
+.. **Public Unit**
 
-  A unit whose **Visibility** option is set to Public so that the unit is visible to students, if the subsection that contains the unit has been released.
+..  A unit whose **Visibility** option is set to Public so that the unit is
+..  visible to students, if the subsection that contains the unit has been
+..  released.
 
-  See :ref:`Public and Private Units` for more information.
+..  See :ref:`Public and Private Units` for more information.
 
 .. _Q: