Update serverless-workflow-foreach-quarkus example

[LuboTerifaj]

Description

Update serverless-workflow-foreach-quarkus example.

Issues

• There is a wrong esxpected output from a request command in readme file:
  • curl -X POST -H 'Content-Type:application/json' -H 'Accept:application/json' -d '{"input": [1,2,3]}' http://localhost:8080/foreach
  • Readme file result:

    { 
    "workflowdata": {
        "output": [
            2,
            3,
            4
        ]
    }
    }

  • Application result: {"id":"c9e6815d-9363-44fd-bd9f-29c7e0813cef","workflowdata":{"output":[4,6,8]}}
• "Building and Deploying Workflow using CLI + Kogito Serverless Workflow Operator" section should be rewritten.
  • Wrong URLs in readme file:
  • "For this prepare your environment by following the instructions from here."
    • References the current readme file. It doesn't make sense to reference the same readme file here.
  • "Refer to Serverless Workflow Guide, to know how to build and deploy workflows using CLI + Kogito Serverless Workflow Operator.'
    • References the current readme file, which is most likely a mistake.
  • It would make sense to add at least some introduction why would somebody follow the instructions in this section.

Acceptance criteria

All issues listed above are resolved.

Implementation ideas

No response