Update documentation --> more detailed / structured README for startup

ToDos:

• Restructuring the documentation to be easier to use
• generally implement Feedback from Martin
• possibly use service like https://readthedocs.org to improve readability

Restructuring the documentation

• Title and description
• Table of contents:
• Installation
  • Different ways to start it
    • Frameworks needed to run it (maybe link to "developer onboarding?)
    • Ways to start it
      • Quick one line of code
      • Different docker compose combinations
        • Mtls, no mtls, mock server, etc..
      • Dev mode
• Devolper Onboarding
  • Which configuration is needed?
    • To run it
      • JAVA Version
      • Docker / Rancher docker version
      • Etc. …
    • For development
      • Quarkus?
      • Etc…
• How to configure it
  • Different configurations
  • How to setup pub/sub (notifications)
  • How patch works
    • Standard auto accept request? Via mock server?

Feedback Martin:

• Great to have .sdkmanrc available, nevertheless it would be helpful to include the info that for non-SDKMAN user JAVA 17 is required.

• After executing ./mvnw compile quarkus:dev like in the README the next problem occurs:

[io.qua.run.uti.ContainerRuntimeUtil] (main) Command "docker" exited with error code 1. Rootless container runtime detection might not be reliable.

--> Better to include the info that docker is needed

• Next problem:

`One or more configuration errors have prevented the application from starting. The errors are:

• SRCFG00014: The config property quarkus.mockserver.host is required but it could not be found in any config source
• SRCFG00014: The config property quarkus.mockserver.port is required but it could not be found in any config source
• SRCFG00014: The config property quarkus.mockserver.endpoint is required but it could not be found in any config source
• SRCFG00014: The config property quarkus.mockserver.client.host is required but it could not be found in any config source
• SRCFG00014: The config property quarkus.mockserver.client.port is required but it could not be found in any config source `

--> more detailed description is needed to help here.

Problem: https://quarkiverse.github.io/quarkiverse-docs/quarkus-mockserver/dev/index.html

--> here it states that default values exist, how ever this is rather irritating.