typo fix

Author: schmalliso

source/kafka-sink-data-formats.txt

@@ -127,15 +127,15 @@ Supported Sink Record Structure
 -------------------------------
 
 Once the converter has deserialized the data from the Kafka topic,
-Kafka Connect creates a :kafka-21-javadoc:`SinkRecord </connect/sink/SinkRecord.html>`
+Kafka Connect creates a `SinkRecord <https://kafka.apache.org/21/javadoc/org/apache/kafka/connect/sink/SinkRecord.html>`__
 object.
 
 The MongoDB Kafka Connector converts the ``SinkRecord`` into
 a ``SinkDocument`` which contains the key and value in BSON format. The
 converter determines the types using schema, if provided.
 
 The connector supports all the core schema types listed in
-:kafka-21-javadoc:`Schema.Type </connect/data/Schema.Type.html>`:
+`Schema.Type <https://kafka.apache.org/21/javadoc/org/apache/kafka/connect/data/Schema.Type.html>`__:
 
 - **Array**
 - **Boolean**