Merge pull request #3551 from hhunter-ms/issue_3302

[pub/sub cloudevents] Update `dapr publish` command

daprdocs/content/en/developing-applications/building-blocks/pubsub/pubsub-cloudevents.md

@@ -92,7 +92,7 @@ You can add additional fields to a custom CloudEvent that are not part of the of
 Publish a CloudEvent to the `orders` topic:
 
 ```bash
-dapr publish --publish-app-id orderprocessing --pubsub order-pub-sub --topic orders --data '{"specversion" : "1.0", "type" : "com.dapr.cloudevent.sent", "source" : "testcloudeventspubsub", "subject" : "Cloud Events Test", "id" : "someCloudEventId", "time" : "2021-08-02T09:00:00Z", "datacontenttype" : "application/cloudevents+json", "data" : {"orderId": "100"}}'
+dapr publish --publish-app-id orderprocessing --pubsub order-pub-sub --topic orders --data '{\"orderId\": \"100\"}'
 ```
 
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