docsp-29281 - add white paper link (#156)

* add link

Author: mongoKart

source/getting-started.txt

@@ -42,10 +42,10 @@ Getting Started
 
          .. include:: /scala/api.txt
 
-   
 Tutorials
 ---------
 
 - :doc:`write-to-mongodb`
 - :doc:`read-from-mongodb`
 - :doc:`structured-streaming`
+

source/includes/list-prerequisites.rst

@@ -1,6 +1,8 @@
 - Basic working knowledge of MongoDB and Apache Spark. Refer to the
-  :manual:`MongoDB documentation </>` and `Spark documentation
-  <https://spark.apache.org/docs/latest/>`_ for more details.
+  :manual:`MongoDB documentation </>`, `Spark documentation
+  <https://spark.apache.org/docs/latest/>`_, and this 
+  `MongoDB white paper <https://www.mongodb.com/collateral/apache-spark-and-mongodb-turning-analytics-into-real-time-action>`__
+  for more details.
 
 - Running MongoDB instance (version 4.0 or later).