I'm afraid I have a bit of bad news! The README file appears to be empty, with only a 404 error message. This means there is no content for me to summarize.
However, if you'd like, I can try to help you craft a summary based on the plugin's name alone (Marp). If you provide more information about what Marp does or what problem it solves, I can attempt to write a 100-word passage that highlights its features and benefits. Just let me know!
Full Changelog: https://github.com/JichouP/obsidian-marp-plugin/compare/1.4.1…1.5.0