README: include build badge for v0.28 builds Include a build badge for `maint/v0.28` builds.
diff --git a/README.md b/README.md
index b675fde..49adba0 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ libgit2 - the Git linkable library
| Build Status | |
| ------------ | - |
| **master** branch CI builds | [](https://dev.azure.com/libgit2/libgit2/_build/latest?definitionId=7&branchName=master) |
+| **v0.28 branch** CI builds | [](https://dev.azure.com/libgit2/libgit2/_build/latest?definitionId=7&branchName=maint/v0.28) |
| **v0.27 branch** CI builds | [](https://dev.azure.com/libgit2/libgit2/_build/latest?definitionId=7&branchName=maint/v0.27) |
| **v0.26 branch** CI builds | [](https://dev.azure.com/libgit2/libgit2/_build/latest?definitionId=7&branchName=maint/v0.26) |
| **Nightly** builds | [](https://libgit2.visualstudio.com/libgit2/_build/latest?definitionId=9&branchName=master) [](https://dev.azure.com/libgit2/libgit2/_build/latest?definitionId=21?branchName=master) [](https://scan.coverity.com/projects/639) |