docs: update README.md for improved guidance and additional tips

[awwaawwa]

This pull request includes several updates to the README.md file to improve the documentation and provide additional guidance for users. The most important changes are summarized below:

Documentation updates:

• Added a new update entry for February 22, 2025, highlighting better release CI and a well-packaged Windows executable.
• Updated the instructions for using the program without Python installed, changing the section title to "Windows exe" and providing new steps for downloading and running the executable.
• Added a tip for users who cannot access Docker Hub, suggesting they try the image on GitHub Container Registry and providing the necessary commands.