Merge pull request #21 from qrxnz/release-please--branches--main

chore(main): release 2.2.0

Merge pull request #17 from qrxnz/release-please--branches--main

chore(main): release 2.1.0

chore(release): Bump version to 2.0.3

Updates the version attribute in the flake.nix file.

chore(release): Bump version to 2.0.2

Updates the version attribute in the flake.nix file.

refactor(build): Simplify build command

Change the `go build -o ./qrack` command to `go build .` to rely on the default Go build behavior.

Update the `justfile` and `README.md` to reflect this change for consistency. Also, apply minor formatting fixes to `README.md` for improved readability.

docs: overhaul README with improved structure and details

This commit completely revamps the README.md file to be more comprehensive, structured, and user-friendly.

- **CI Badge:** Adds a GitHub Actions workflow badge to show the build status.

- **Improved Descriptions:** Expands the project description and adds a 'Features' section.

- **New Sections:** Adds 'Installation' and 'License' sections for clarity.

- **Detailed Usage:** The 'Usage' section now includes a table explaining all command-line flags and a better example.