DOCSP-27804 add mapReduce Limitation (#117)

* DOCSP-27804 Adds mapReduce to  limitation

* Adjusts text

* Adjusts text

* Adjusts text

* Update source/includes/limitations-filtering.rst

Co-authored-by: Alison Huh <[email protected]>

* Fixes per Ali

* Fixes per Ali

* Fixes per Ali

* Fixes per Ali

* Fixes per Ali

---------

Co-authored-by: Alison Huh <[email protected]>

Author: kennethdyer

source/includes/limitations-filtering.rst

@@ -11,8 +11,10 @@
 - If a filter includes a :ref:`view <views-landing-page>` but not the
   base collection, only the view is replicated.
 - You cannot specify system collections or system databases in a filter.
-- Operations that use the :pipeline:`$out` aggregation stage are only 
-  supported if the entire database is specified in the filter. You
-  cannot limit the filter to a collection within the database. See:
-  :ref:`c2c-filter-with-out`.
+- To use the :pipeline:`$out` aggregation stage or the :dbcommand:`mapReduce`
+  command (when set to create or replace a collection) with filtering,
+  you must configure the filter to use the entire database.
+  You cannot limit the filter to collections within the database.
+
+  For more information, see :ref:`c2c-filter-with-out`.
 

source/reference/collection-level-filtering.txt

@@ -186,13 +186,14 @@ See the :ref:`renaming examples <c2c-example-rename-while-syncing>`.
 
 .. _c2c-filter-with-out:
 
-Filtering with $out
--------------------
+Filtering with mapReduce and $out
+---------------------------------
 
-The :ref:`$out <agg-out>` aggregation stage creates a new collection
-when it runs. You can use the ``$out`` stage with filtering if you are
-filtering on the whole database and not just the collection specified in
-the ``$out`` statement.
+To use the :pipeline:`$out` aggregation stage or
+the :dbcommand:`mapReduce` command (when set to create
+or replace a collection) with filtering, you must 
+filter the whole database and not just
+the specified collection.
 
 For example, consider this aggregation pipeline:
 
@@ -219,7 +220,7 @@ This filter works:
      }
    ]
 
-This filter does not work with ``$out``:
+This filter does not work: 
 
 .. code-block:: json