README: add a build badge (status of the Azure Pipelines build)

Just like so many other OSS projects, we now also have a build badge. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Johannes Schindelin committed Jan 29, 2019 at 06:19 UTC 5f7864663bdb71635b4aaf0d996db14e4d521ff6
1 file changed +2
README.md
+2
@@ -1,3 +1,5 @@
1 +[![Build Status](https://dev.azure.com/git/git/_apis/build/status/test-git.git)](https://dev.azure.com/git/git/_build/latest?definitionId=2)
2 +
3 Git - fast, scalable, distributed revision control system
4 =========================================================
5