update demo for sam local debug (#84)

Author: bnusunny

examples/nextjs-zip/README.md

@@ -70,7 +70,7 @@ nextjs-zip$ sam local invoke HelloWorldFunction --event events/event.json
 The SAM CLI can also emulate your application's API. Use the `sam local start-api` to run the API locally on port 3000.
 
 ```bash
-nextjs-zip$ sam local start-api
+nextjs-zip$ sam local start-api --region us-west-2
 nextjs-zip$ curl http://localhost:3000/
 ```
 

examples/nextjs-zip/app/run.sh

@@ -23,7 +23,7 @@ Resources:
         Variables:
           AWS_LAMBDA_EXEC_WRAPPER: /opt/bootstrap
           RUST_LOG: info
-          PORT: 8080
+          PORT: 8000
       Layers:
         - !Sub arn:aws:lambda:${AWS::Region}:753240598075:layer:LambdaAdapterLayerX86:5
       Events: