update package, fix issue 3135 (#3136)

docs/serving/samples/cloudevents/cloudevents-nodejs/README.md

@@ -70,9 +70,9 @@ To deploy the Knative service, edit the `service.yaml` file and replace
 
 To deploy using the `kn` CLI:
 
-```shell
-kn service create cloudevents-nodejs --image=<image>
-```
+   ```shell
+   kn service create cloudevents-nodejs --image=<image>
+   ```
 
 {{ /tab }}{{ /tabs }}
 

docs/serving/samples/cloudevents/cloudevents-nodejs/package.json

@@ -13,7 +13,7 @@
   "author": "",
   "license": "Apache-2.0",
   "dependencies": {
-    "cloudevents": "^3.2.0",
+    "cloudevents": "^4.0.0",
     "express": "^4.17.1",
     "nodemon": "^2.0.4"
   },

docs/serving/samples/cloudevents/cloudevents-nodejs/service.yaml

@@ -21,8 +21,8 @@ spec:
   template:
     spec:
       containers:
-        - image: <registry/repository/image:tag>
-          # Uncomment this to send events somewhere.
-          # env:
-          # - name: K_SINK
-          #   value: http://default-broker.default.svc.cluster.local
+      - image: <registry/repository/image:tag>
+        # Uncomment this to send events somewhere.
+        # env:
+        # - name: K_SINK
+        #   value: http://default-broker.default.svc.cluster.local