DOCSP-10925 UUID format strategy (#52)

* DOCSP-10925: document uuid format strategy

Author: Chris Cho

source/kafka-sink-properties.txt

@@ -100,6 +100,13 @@ data to sink to MongoDB. For an example configuration file, see
        | **Default**: ``false``
        | **Accepted Values**: ``true`` or ``false``
 
+   * - document.id.strategy.uuid.format
+     - string
+     - | Whether the connector should output the UUID in the ``_id`` field as a string or in the `BsonBinary <https://mongodb.github.io/mongo-java-driver/4.1/apidocs/bson/org/bson/BsonBinary.html>`__ format.
+       |
+       | **Default**: ``string``
+       | **Accepted Values**: ``string`` or ``binary``
+
    * - delete.on.null.values
      - boolean
      - | Whether the connector should delete documents with matching key values when value is null.