docs: Revise README.md and remove line from sonar-project.properties

- Updated download links for pre-compiled binaries
- Added package registry link for all versions
- Added configuration section to README.md
- Included instructions for setting up environment variables
- Added example of setting values in a `.env` file
- Added link to generated documentation for more information about commands
- Removed the line "sonar.qualitygate.wait=true" from sonar-project.properties