Update the status of pulsar-flink connector (#6657)

diff --git a/pulsar-flink/README.md b/pulsar-flink/README.md
new file mode 100644
index 0000000..7225969
--- /dev/null
+++ b/pulsar-flink/README.md
@@ -0,0 +1,6 @@
+# Pulsar Flink Connector
+
+This Pulsar Flink connector is superseded by a newer version of [pulsar-flink](https://flink-packages.org/packages/pulsar-flink-connector)
+in Flink Packages.
+
+Details: https://cwiki.apache.org/confluence/display/FLINK/FLIP-72%3A+Introduce+Pulsar+Connector
\ No newline at end of file
diff --git a/pulsar-flink/pom.xml b/pulsar-flink/pom.xml
index 8280ca6..561fc50 100644
--- a/pulsar-flink/pom.xml
+++ b/pulsar-flink/pom.xml
@@ -31,7 +31,10 @@
   </parent>
 
   <artifactId>pulsar-flink</artifactId>
-  <name>Pulsar Flink Connectors</name>
+  <!-- This Pulsar Flink connector is superseded by a new version of `pulsar-flink` connector.
+       https://flink-packages.org/packages/pulsar-flink-connector
+       https://cwiki.apache.org/confluence/display/FLINK/FLIP-72%3A+Introduce+Pulsar+Connector -->
+  <name>Pulsar Flink Connectors (Deprecated)</name>
 
   <dependencies>
     <dependency>