10.2 whats new features (#171)

(cherry picked from commit ecf1df2)

Author: mongoKart

source/release-notes.txt

@@ -2,12 +2,23 @@
 Release Notes
 =============
 
-MongoDB Connector for Spark 10.2.0
-----------------------------------
+MongoDB Connector for Spark 10.2
+--------------------------------
+
+The 10.2 connector release includes the following new features:
 
-- Added the ``ignoreNullValues`` write configuration property, which enables you
+- Added the ``ignoreNullValues`` write-configuration property, which enables you
   to control whether the connector ignores null values. In previous versions, 
   the connector always wrote ``null`` values to MongoDB.
+- Added options for the ``convertJson`` write-configuration property.
+- Added the ``change.stream.micro.batch.max.partition.count`` read-configuration property,
+  which allows you to divide micro-batches into multiple partitions for parallel
+  processing.
+- Improved change stream schema inference when using the
+  ``change.stream.publish.full.document.only`` read-configuration property. 
+- Added the ``change.stream.startup.mode`` read-configuration property, which specifies
+  how the connector processes change events when no offset is available.
+- Support for adding a comment to operations.
 
 MongoDB Connector for Spark 10.1.1
 ----------------------------------