Fix some HTML issues in the templates

openassessment/templates/openassessmentblock/edit/oa_edit_example_based_assessment.html

 {% load i18n %}
 {% spaceless %}
 <li class="openassessment_assessment_module_settings_editor" id="oa_ai_assessment_editor">
-    <div class = "drag-handle action"></div>
-    <div class = "openassessment_inclusion_wrapper">
+    <div class="drag-handle action"></div>
+    <div class="openassessment_inclusion_wrapper">
         <input id="include_ai_assessment" type="checkbox"
                 {% if assessments.example_based_assessment %} checked="true" {% endif %}>
         <label for="include_ai_assessment">{% trans "Step: Example-Based Assessment" %}</label>

openassessment/templates/openassessmentblock/edit/oa_edit_peer_assessment.html

@@ -2,13 +2,13 @@
 {% load tz %}
 {% spaceless %}
 <li class="openassessment_assessment_module_settings_editor" id="oa_peer_assessment_editor">
-    <div class = "drag-handle action"></div>
+    <div class="drag-handle action"></div>
     <div class="openassessment_inclusion_wrapper">
         <input type="checkbox" id="include_peer_assessment"
                 {% if assessments.peer_assessment %} checked="true" {% endif %}>
         <label for="include_peer_assessment">{% trans "Step: Peer Assessment" %}</label>
     </div>
-    <div class = "openassessment_assessment_module_editor">
+    <div class="openassessment_assessment_module_editor">
         <p id="peer_assessment_description_closed" class="openassessment_description_closed {% if assessments.peer_assessment %} is--hidden {% endif %}">
             {% trans "Students assess a specified number of other students' responses using the rubric for the assignment." %}
         </p>

openassessment/templates/openassessmentblock/edit/oa_edit_rubric.html

@@ -23,7 +23,7 @@
 
     <div id="openassessment_rubric_content_editor">
     <div id="openassessment_rubric_instructions">
-        <p class = openassessment_description>
+        <p class="openassessment_description">
             {% trans "For open response problems, assessment is rubric-based.  Rubric criterion have point breakdowns and explanations to help students with peer and self assessment steps. For more information on how to build your rubric, see our online help documentation."%}
         </p>
     </div>

openassessment/templates/openassessmentblock/edit/oa_edit_self_assessment.html

@@ -2,8 +2,8 @@
 {% load tz %}
 {% spaceless %}
 <li class="openassessment_assessment_module_settings_editor" id="oa_self_assessment_editor">
-    <div class = "drag-handle action"></div>
-    <div class = "openassessment_inclusion_wrapper">
+    <div class="drag-handle action"></div>
+    <div class="openassessment_inclusion_wrapper">
         <input id="include_self_assessment" type="checkbox"
                 {% if assessments.self_assessment %} checked="true" {% endif %}>
         <label for="include_self_assessment">{% trans "Step: Self Assessment" %}</label>

openassessment/templates/openassessmentblock/edit/oa_edit_student_training.html

 {% load i18n %}
 {% spaceless %}
 <li class="openassessment_assessment_module_settings_editor" id="oa_student_training_editor">
-    <div class = "drag-handle action"></div>
+    <div class="drag-handle action"></div>
 
-    <div class = "openassessment_inclusion_wrapper">
+    <div class="openassessment_inclusion_wrapper">
         <input type="checkbox" id="include_student_training"
                 {% if assessments.student_training %} checked="true" {% endif %}>
         <label for="include_student_training">{% trans "Step: Student Training" %}</label>
     </div>
 
-    <div class = "openassessment_assessment_module_editor">
+    <div class="openassessment_assessment_module_editor">
         <p id="student_training_description_closed" class="openassessment_description_closed {% if assessments.student_training %} is--hidden {% endif %}">
             {% trans "Students learn to assess responses by scoring pre-assessed sample responses that the instructor provides. Students move to the next step when the scores they give match the instructor's scores. Note that Student Training Requires that the Peer Assessment module is also selected." %}
         </p>