readme: update CI badge to use master branch
1 files changed, 1 insertions(+), 1 deletions(-) M README.md
M README.md => README.md +1 -1
@@ 2,7 2,7 @@ A minimal [POSIX] shell. [](https://builds.sr.ht/~emersion/mrsh) [](https://builds.sr.ht/~emersion/mrsh/commits/master?) * POSIX compliant, no less, no more * Simple, readable code without magic