DOCSP-19065: introductory paragraphs (#177)

* DOCSP-19065: introductory paragraphs

Author: Chris Cho

snooty.toml

@@ -10,6 +10,7 @@ ak = "Apache Kafka"
 kc = "Kafka Connect"
 avro = "Apache Avro"
 avro-short = "Avro"
+kafka-connect = "Confluent Kafka Connect"
 connector_version="1.6"
 connector_driver_version="4.3"
 connector_driver_url_base="https://docs.mongodb.com/drivers/java/sync/v{+connector_driver_version+}/"

source/sink-connector/configuration-properties.txt

@@ -15,7 +15,9 @@ Sink Connector Configuration Properties
 Overview
 --------
 
-TODO:
+In this section, you can read descriptions of sink connector properties,
+including essential {+kafka-connect+} settings and {+mkc+}-specific
+settings.
 
 For an example sink connector configuration file, see
 `MongoSinkConnector.properties

source/source-connector/configuration-properties.txt

@@ -15,7 +15,9 @@ Source Connector Configuration Properties
 Overview
 --------
 
-TODO:
+In this section, you can read descriptions of source connector properties,
+including essential {+kafka-connect+} settings and {+mkc+}-specific
+settings.
 
 For an example source connector configuration file, see
 `MongoSourceConnector.properties <https://github.com/mongodb/mongo-kafka/blob/master/config/MongoSourceConnector.properties>`__.