[SPARK] Calculate average document size if not available from storageStats (#253)

* ADF compatibility

* title updates

* space

* typo

Author: rachel-mack

source/release-notes.txt

@@ -18,20 +18,44 @@ Release Notes
    :depth: 1
    :class: singlecol
 
+Learn what's new in:
+
+* :ref:`Version 10.5 <version-10.5>`
+* :ref:`Version 10.4 <version-10.4>`
+* :ref:`Version 10.3 <version-10.3>`
+* :ref:`Version 10.2 <version-10.2>`
+* :ref:`Version 10.1.1 <version-10.1.1>`
+* :ref:`Version 10.1.0 <version-10.1.0>`
+* :ref:`Version 10.0 <version-10.0.0>`
+
+.. _version-10.5:
+
 MongoDB Connector for Spark 10.5
 --------------------------------
 
 The 10.5 connector release includes the following changes and new features:
 
+- Adds support for using :products:`Atlas Data Federation
+  </platform/atlas-data-federation>` with the {+connector-short+} in the ``SamplePartitioner``,
+  ``PaginateBySizePartitioner`` and ``AutoBucketPartitioner`` batch reading
+  configurations.
+  
+  For more information about batch configuration, see the :ref:`Batch Read
+  Configuration Options <spark-batch-read-conf>` page.
+
 - Changes the default batch read partitioner configuration to be ``AutoBucketPartitioner``
 
+.. _version-10.4:
+
 MongoDB Connector for Spark 10.4
 --------------------------------
 
 The 10.4 connector release includes the following changes and new features:
 
 - Updates the Java Sync Driver version to v5.1.x.
 
+.. _version-10.3:
+
 MongoDB Connector for Spark 10.3
 --------------------------------
 
@@ -66,6 +90,8 @@ The 10.3 connector release includes the following new features:
   To learn more about scanning multiple collections, see the :ref:`collection
   configuration property <spark-streaming-input-conf>` description.
 
+.. _version-10.2:
+
 MongoDB Connector for Spark 10.2
 --------------------------------
 
@@ -84,12 +110,16 @@ The 10.2 connector release includes the following new features:
   how the connector processes change events when no offset is available.
 - Support for adding a comment to operations.
 
+.. _version-10.1.1:
+
 MongoDB Connector for Spark 10.1.1
 ----------------------------------
 
 - Corrected a bug in which aggregations including the ``$collStats`` pipeline stage
   did not return a count field for Time Series collections.
 
+.. _version-10.1.0:
+
 MongoDB Connector for Spark 10.1.0
 ----------------------------------
 
@@ -105,6 +135,8 @@ MongoDB Connector for Spark 10.1.0
 See `this post <https://www.mongodb.com/blog/post/introducing-mongodb-spark-connector-version-10-1>`__ 
 on the MongoDB blog for more information.
 
+.. _version-10.0.0:
+
 MongoDB Connector for Spark 10.0.0
 ----------------------------------