README.md contains very long lines that may cause rendering issues:
$ file README.md
README.md: exported SGML document, ASCII text, with very long lines (340)
Before:
This is a very long line with a URL https://github.com/loganylchen/MPAGE/workflows/R-CMD-check/badge.svg that goes on forever
After:
This is a properly wrapped line with a URL [badge] that displays correctly.
[badge]: https://github.com/loganylchen/MPAGE/workflows/R-CMD-check/badge.svg