README.md: Display status of main branch in build status badge

The master branch was renamed to main, but the build status
badge wasn't updated as part of this change.  Display the
build status of the main branch in README.md

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>

diff --git a/README.md b/README.md
index 6094e5f3e05855c0c5783df8eac766a911e1c3e1..b46b712edfd2bb4a408e9db710f936db36bfa25b 100644 (file)
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![Build Status](https://github.com/libcgroup/libcgroup/workflows/Continuous%20Integration/badge.svg?branch=master)](https://github.com/libcgroup/libcgroup/actions)
+[![Build Status](https://github.com/libcgroup/libcgroup/workflows/Continuous%20Integration/badge.svg?branch=main)](https://github.com/libcgroup/libcgroup/actions)
 [![Coverage Status](https://coveralls.io/repos/github/libcgroup/libcgroup/badge.png)](https://coveralls.io/github/libcgroup/libcgroup)
 
 The entire libcgroup README is available [here](README).