FC-0068 docs: Reference cleaning by edunext openedx#3

This PR corrects simple RST standard errors in some educator documentation references and erases one edX reference.

source/educators/references/course_development/exercise_tools/dropdown_problem_xml.rst

@@ -1,14 +1,13 @@
 .. _Dropdown Problem XML:
 
-******************************
 Dropdown Problem OLX Reference
-******************************
+##############################
 
 .. tags:: educator, reference
 
-========
+
 Template
-========
+********
 
 .. code-block:: xml
 
@@ -36,9 +35,9 @@ Template
     </demandhint>
   </problem>
 
-========
+
 Elements
-========
+********
 
 For dropdown problems, the ``<problem>`` element can include this
 hierarchy of child elements.
@@ -57,74 +56,65 @@ hierarchy of child elements.
 
 In addition, standard HTML tags can be used to format text.
 
---------------------
+====================
 ``<optionresponse>``
---------------------
+====================
 
 Required. Indicates that the problem is a dropdown problem.
 
-^^^^^^^^^^
-Attributes
-^^^^^^^^^^
+
+**Attributes:**
+
 
 None.
 
-^^^^^^^^
-Children
-^^^^^^^^
+
+**Children:**
+
 
 * ``<label>``
 * ``<description>``
 * ``<optioninput>``
 * ``<solution>``
 
------------
+===========
 ``<label>``
------------
+===========
 
 Required. Identifies the question or prompt. You can include HTML tags within
 this element.
 
-^^^^^^^^^^
-Attributes
-^^^^^^^^^^
+**Attributes:**
 
 None.
 
-^^^^^^^^
-Children
-^^^^^^^^
+
+**Children:**
 
 None.
 
------------------
+=================
 ``<description>``
------------------
+=================
 
 Optional. Provides clarifying information about how to answer the question. You
 can include HTML tags within this element.
 
-^^^^^^^^^^
-Attributes
-^^^^^^^^^^
+**Attributes:**
 
 None.
 
-^^^^^^^^
-Children
-^^^^^^^^
+**Children:**
 
 None.
 
------------------
+=================
 ``<optioninput>``
------------------
+=================
 
 Required. Designates an answer option.
 
-^^^^^^^^^^
-Attributes
-^^^^^^^^^^
+**Attributes:**
 
 .. list-table::
    :widths: 20 80
@@ -143,23 +133,19 @@ Attributes
      - Used if the ``options`` attribute is set. Required. Indicates
        which of the answer options is correct.
 
-^^^^^^^^
-Children
-^^^^^^^^
+**Children:**
 
 * ``<option>``
 * ``<optionhint>``
 
-------------
+============
 ``<option>``
-------------
+============
 
 Designates an answer option. Either a set of ``<option>`` child elements or the
 ``options`` attribute for ``<optioninput>`` is required.
 
-^^^^^^^^^^
-Attributes
-^^^^^^^^^^
+**Attributes:**
 
 .. list-table::
    :widths: 20 80
@@ -175,68 +161,56 @@ Attributes
 If the ``<option>`` element is used, ``<optionhint>`` is a child of
 ``<option>``.
 
-----------------
+================
 ``<optionhint>``
-----------------
+================
 
 Optional. Specifies feedback for the answer.
 
-^^^^^^^^^^
-Attributes
-^^^^^^^^^^
+**Attributes:**
 
 None.
 
-^^^^^^^^
-Children
-^^^^^^^^
+**Children:**
 
 None.
 
---------------
+==============
 ``<solution>``
---------------
+==============
 
 Optional. Identifies the explanation or solution for the problem, or for one of
 the questions in a problem that contains more than one question.
 
 This element contains an HTML division ``<div>``. The division contains one or
 more paragraphs ``<p>`` of explanatory text.
 
-----------------
+================
 ``<demandhint>``
-----------------
+================
 
 Optional. Specifies hints for the learner. For problems that include multiple
 questions, the hints apply to the entire problem.
 
-^^^^^^^^^^
-Attributes
-^^^^^^^^^^
+**Attributes:**
 
 None.
 
-^^^^^^^^
-Children
-^^^^^^^^
+**Children:**
 
 ``<hint>``
 
-----------
+==========
 ``<hint>``
-----------
+==========
 
 Required. Specifies additional information that learners can access if needed.
 
-^^^^^^^^^^
-Attributes
-^^^^^^^^^^
+**Attributes:**
 
 None.
 
-^^^^^^^^
-Children
-^^^^^^^^
+**Children:**
 
 None.
 

source/educators/references/course_development/exercise_tools/external_grader_requirements.rst

@@ -1,8 +1,7 @@
 .. _External Grader Problem Requirements:
 
-**************************************
 External Grader Problem Requirements
-**************************************
+####################################
 
 .. tags:: educator, reference
 
@@ -17,19 +16,17 @@ An external grader problem in Studio must have the following requirements.
 
 .. _GPG Key:
 
-=======
 GPG Key
-=======
+*******
 
 Before you can add an external grader problem, you must obtain a public GNU
 Privacy Guard (GPG) key. For information about how to obtain a GPG key, see the
 `GnuPG website`_.
 
 .. _XQueue Name:
 
-===========
 XQueue Name
-===========
+***********
 
 The external grader problems in your course must use a specific XQueue name.
 You create the name for the XQueue that your course uses when you request

source/educators/references/course_development/exercise_tools/gene_explorer.rst

@@ -60,4 +60,12 @@ In this code:
   based on the five gene editor problems in the MITx 7.00x course--for example,
   if you want this problem to look like the second gene editor problem in the
   7.00x course, you would set the **genex_problem_number** value to 2. The
-  number must be 1, 2, 3, 4, or 5.
+  number must be 1, 2, 3, 4, or 5.
+
+.. seealso::
+
+ :class: dropdown
+
+ :ref:`Create Custom Javascript` (how to) 
+
+ :ref:`Core Problem Types` (reference)

source/educators/references/course_development/exercise_tools/image_mapped_input_xml.rst

@@ -1,14 +1,12 @@
 .. _Image Mapped Input Problem XML:
 
-******************************
 Image Mapped Input Problem XML
-******************************
+##############################
 
 .. tags:: educator, reference
 
-==========
 Template
-==========
+********
 
 .. code-block:: xml
 
@@ -26,9 +24,9 @@ Template
 
   </problem>
 
-=====
+
 Tags
-=====
+****
 
 * ``<imageresponse>``: Indicates that the problem is an image mapped input
   problem.

source/educators/references/course_development/exercise_tools/lti_component.rst

@@ -69,4 +69,6 @@ For more information about how to use Studio as an LTI tool provider, see
 
  :ref:`Enable_LTI_Components` (how to)
 
- :ref:`LTI Component settings` (reference)
+ :ref:`LTI Component settings` (reference)
+
+ :ref:`Accessibility Best Practices for Course Content Development`

source/educators/references/course_development/exercise_tools/lti_component_settings.rst

@@ -1,8 +1,7 @@
 .. _LTI Component settings:
 
-**********************
 LTI Component Settings
-**********************
+######################
 
 .. tags:: educator, reference
 
@@ -44,7 +43,7 @@ LTI Component Settings
        authentication flow. This can also be called *Login URL* on some tools.
 
    * - LTI 1.3 Tool Public Key (LTI 1.3 only)
-     - The LTI 1.3 Tool's public key. This is a string that starts with
+     - The LTI 1.3 tool's public key. This is a string that starts with
        '-----BEGIN PUBLIC KEY-----' and is required so that the LMS can check if
        the messages and launch requests received have the signature from the tool.
        This is not required when doing LTI 1.3 Launches without LTI Advantage.
@@ -161,7 +160,7 @@ LTI Component Settings
        learners to interact with it.
 
    * - Accept grades past deadline
-     - Specifies whether third party systems are allowed to post grades after
+     - Specifies whether third-party systems are allowed to post grades after
        the deadline. By default, this value is set to **True**.
 
    * - Request user's email

source/educators/references/course_development/exercise_tools/math_expression_input.rst

@@ -6,7 +6,7 @@ Math Expression Input Problems
 
 .. tags:: educator, reference
 
-The math expression input problem type is a core problem type that can be added
+The math expression input problem is a core problem type that can be added
 to any course. At a minimum, math expression problems include a question or
 prompt and a response field for a numeric answer.
 
@@ -27,9 +27,6 @@ appears below the response field. Unlike numerical input problems, which only
 allow integers and a few select constants, math expression input problems can
 include unknown variables and more complicated symbolic expressions.
 
-For more information about how learners enter expressions, see
-`Math Formatting`_ in the *Open edX Learner's Guide*.
-
 .. note::
   You can make a calculator tool available to your learners on every unit
   page. For more information, see :ref:`Calculator`.
@@ -49,9 +46,9 @@ Studio`.
  input problems can include complex numbers raised to fractional powers, or
  positive non-complex numbers raised to fractional powers.
 
-=====================================
+
 Example Math Expression Input Problem
-=====================================
+*************************************
 
 In the LMS, learners enter a value into a response field to complete a math
 expression input problem. The following example shows a completed math