Improve the messages and tool usability #2
Description
Some small improvements making the tool clearer and easier to use:
- Add a README file in the zip files, with a link to the official docs or HC page about the tool.
- Update the main description of the tool:
- Instead of: "A CLI to update and flash the Debian image"
- replace with: "A CLI to update your Arduino UNO Q board, by downloading and flashing the latest Arduino Linux image"
- The usage section should also have an example of the "flash" command, which is the most used command.
- When asking for a confirmation, before starting the flashing of the board, the message should not show the full path, but just the selected version. So "latest" or "20250101-123" (if those were specified by the user) or the path of the archive or folder, if that's how the user launched the command.
- When the flashing of the board is completed, add a line "The board has been successfully flashed. You can now power-cycle the board (unplug and re-plug). Remember to remove the jumper."