updated readme.md

Signed-off-by: sadath-12 <[email protected]>

examples/pubsub/README.md

@@ -23,6 +23,8 @@ background: true
 sleep: 15
 -->
 
+#### Note: sub/sub.go contains both AddTopicEventHandler (used for subscribe of messages) and AddBulkTopicEventHandler (used for bulksubscribe of messages)
+
 ```bash
 dapr run --app-id sub \
          --app-protocol http \
@@ -44,10 +46,12 @@ expected_stdout_lines:
 background: true
 sleep: 15
 -->
+#### Note: pub/pub.go contains both PublishEvents (used for publish of messages) and PublishEvent (used for bulkPublish of messages) 
 
 ```bash
 export DAPR_PUBSUB_NAME=messages
 
+
 dapr run --app-id pub \
          --log-level debug \
          --resources-path ./config \