DOCSP-33044: Atlas Stream Processing callout (#137)

* DOCSP-33044: Atlas Stream Processing callout

Author: Chris Cho

source/index.txt

@@ -31,13 +31,27 @@ a Confluent-verified connector that persists data from {+kafka+} topics as a
 data sink into MongoDB and publishes changes from MongoDB into Kafka
 topics as a data source.
 
-We recommend that you use one of the following MongoDB partner service 
+We recommend that you use one of the following MongoDB partner service
 offerings to host your {+kafka+} cluster and {+connector+}:
 
 - `Confluent Cloud <https://www.confluent.io/lp/confluent-cloud/>`__
 - `Amazon Managed Streaming for Apache Kafka (MSK) <https://aws.amazon.com/msk/>`__
 - `Redpanda Cloud <https://redpanda.com/redpanda-cloud>`__
 
+.. note::
+
+   You can also use Atlas Stream Processing, which is a MongoDB-native way to
+   process streaming data by using the MongoDB Query API. It transforms the way
+   that developers build modern applications.
+
+   Use Atlas Stream Processing to continuously process streaming data,
+   validate schemas, and materialize views into either Atlas database
+   collections or Apache Kafka topics.
+
+   To learn more about Atlas Stream Processing, see the
+   `Atlas Stream Processing <https://www.mongodb.com/products/platform/atlas-stream-processing>`__
+   product page or read the `documentation <https://www.mongodb.com/docs/atlas/atlas-sp/overview/>`__.
+
 What's New
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