Update Javadoc for MessageOperation

Author: cbos

instrumentation-api-incubator/src/main/java/io/opentelemetry/instrumentation/api/incubator/semconv/messaging/MessageOperation.java

@@ -9,7 +9,7 @@
 
 /**
  * Represents type of <a
- * href="https://github.com/open-telemetry/semantic-conventions/blob/main/docs/messaging/messaging-spans.md#operation-names">operations</a>
+ * href="https://github.com/open-telemetry/semantic-conventions/blob/main/docs/messaging/messaging-spans.md#operation-types">operations</a>
  * that may be used in a messaging system.
  */
 public enum MessageOperation {