update TOC labels

(cherry picked from commit cd925bd)

Author: lindseymoore

source/sink-connector/configuration-properties.txt

@@ -82,7 +82,7 @@ for more information on these settings.
 
    MongoDB Connection </sink-connector/configuration-properties/mongodb-connection>
    MongoDB Namespace </sink-connector/configuration-properties/mongodb-namespace>
-   Connector Topic </sink-connector/configuration-properties/kafka-topic>
+   Kafka Topics </sink-connector/configuration-properties/kafka-topic>
    Connector Message Processing </sink-connector/configuration-properties/connector-message>
    Connector Error Handling </sink-connector/configuration-properties/error-handling>
    Post-processors <sink-connector/configuration-properties/post-processors>

source/source-connector/configuration-properties.txt

@@ -66,7 +66,7 @@ for more information on these settings.
    :caption: Sink Connector Configuration Properties
 
    MongoDB Connection </source-connector/configuration-properties/mongodb-connection>
-   Kafka Topic </source-connector/configuration-properties/kafka-topic>
+   Kafka Topics </source-connector/configuration-properties/kafka-topic>
    Change Stream </source-connector/configuration-properties/change-stream>
    Output Format </source-connector/configuration-properties/output-format>
    Startup </source-connector/configuration-properties/startup>