add to supported library doc

Author: laurit

docs/supported-libraries.md

@@ -32,6 +32,7 @@ These are the supported libraries and frameworks:
 | [Apache HttpAsyncClient](https://hc.apache.org/index.html)                                                                                  | 4.1+                               | N/A                                                                                                                                                                                                                                                                                                                                                                                     | [HTTP Client Spans], [HTTP Client Metrics]                                                                                                        |
 | [Apache HttpClient](https://hc.apache.org/index.html)                                                                                       | 2.0+                               | [opentelemetry-apache-httpclient-4.3](../instrumentation/apache-httpclient/apache-httpclient-4.3/library),<br>[opentelemetry-apache-httpclient-5.2](../instrumentation/apache-httpclient/apache-httpclient-5.2/library)                                                                                                                                                                 | [HTTP Client Spans], [HTTP Client Metrics]                                                                                                        |
 | [Apache ShenYu](https://shenyu.apache.org/)                                                                                                 | 2.4+                               | N/A                                                                                                                                                                                                                                                                                                                                                                                     | Provides `http.route` [2]                                                                                                                         |
+| [Apache Kafka Connect API](https://kafka.apache.org/documentation/#connect)                                                                 | 2.6+                               | N/A                                                                                                                                                                                                                                                                                                                                                                                     | [Messaging Spans]                                                                                                                                 |
 | [Apache Kafka Producer/Consumer API](https://kafka.apache.org/documentation/#producerapi)                                                   | 0.11+                              | [opentelemetry-kafka-clients-2.6](../instrumentation/kafka/kafka-clients/kafka-clients-2.6/library)                                                                                                                                                                                                                                                                                     | [Messaging Spans]                                                                                                                                 |
 | [Apache Kafka Streams API](https://kafka.apache.org/documentation/streams/)                                                                 | 0.11+                              | N/A                                                                                                                                                                                                                                                                                                                                                                                     | [Messaging Spans]                                                                                                                                 |
 | [Apache MyFaces](https://myfaces.apache.org/)                                                                                               | 1.2+ (not including 4.0+ yet)      | N/A                                                                                                                                                                                                                                                                                                                                                                                     | Provides `http.route` [2], Controller Spans [3]                                                                                                   |