DOC-514 Add mongodb_cdc_connector (#186)

Author: asimms41

modules/ROOT/nav.adoc

@@ -64,6 +64,7 @@
 *** xref:components:inputs/kafka.adoc[]
 *** xref:components:inputs/kafka_franz.adoc[]
 *** xref:components:inputs/mongodb.adoc[]
+*** xref:components:inputs/mongodb_cdc.adoc[]
 *** xref:components:inputs/mqtt.adoc[]
 *** xref:components:inputs/mysql_cdc.adoc[]
 *** xref:components:inputs/nanomsg.adoc[]