DOCSP-23699: fixed format of a heading (#374)

* DOCSP-23699: fixed format of a heading

* small rst error

* fixed bolded text

* changes to wording

Author: norareidy

source/fundamentals/crud/read-operations/distinct.txt

@@ -42,19 +42,23 @@ usage of ``distinct()``:
 Distinct
 --------
 
-Use a document field name as a parameter for the ``distinct()`` method to return a 
-list of the field's unique values. You can specify two optional parameters to adjust
-the method output:
+The ``distinct()`` method requires a document field as a parameter. You can specify the 
+following optional parameters to adjust the method output:
 
 - A ``query`` parameter to refine your results 
 - An ``options`` parameter to set collation rules
 
+Document Field Parameter
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Pass the name of the document field to return a list of the field's unique values.
+
 Example
 ```````
 
 The "``Queens``" and "``Manhattan``" borough values each appear more than
 once in the sample documents. However, the following example retrieves the 
-unique values of the ``borough`` field: 
+unique values of the ``borough`` field:
 
 .. code-block:: javascript
 

source/usage-examples/distinct.txt

@@ -48,7 +48,7 @@ message that resembles the following:
 
    "key" had the wrong type. Expected string, found <non-string type>
 
-Visit :ref:`node-fundamentals-distinct` for more information about the `distinct()` 
+Visit :ref:`node-fundamentals-distinct` for more information about the ``distinct()``
 method. 
 
 Example