chore: import upstream snapshot with attribution

examples/tutorials/flow-deploy/create-service-with-flow/README.md

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+---
+resources: examples/tutorials/flow-deploy/create-service-with-flow
+category: deployment
+weight: 10
+---
+
+# Create service with flow
+
+This example shows how to create a simple service with flow.
+
+You can create your own service by utilize `flow-as-function`.
+
+This folder contains a example on how to build a service with a flow.
+Reference [here](./simple_score.py) for a minimal service example.
+The output of score.py will be a json serialized dictionary.
+You can use json parser to parse the output.
+
+## 1. Start the service and put in background
+
+```bash
+nohup python simple_score.py &
+# Note: added this to run in our CI pipeline, not needed for user.
+sleep 10
+```
+
+## 2. Test the service with request
+
+Executing the following command to send a request to execute a flow.
+
+```bash
+curl -X POST http://127.0.0.1:5000/score --header "Content-Type: application/json" --data '{"flow_input": "some_flow_input", "node_input": "some_node_input"}'
+```
+
+Sample output of the request:
+
+```json
+{
+  "output": {
+    "value": "some_flow_input"
+  }
+}
+```
+
+Reference [here](./simple_score.py) for more.