README: Indicate build status

Now that we pulish the docs on commit the build status is even more important.

README: Indicate build status
Now that we pulish the docs on commit the build status is even more important.
e6b65e93 · Guido Gunther · 02c5072a · e6b65e93
Commit e6b65e93 authored Dec 23, 2018 by Guido Gunther
--- a/README.md
+++ b/README.md
@@ -19,3 +19,5 @@ browser (from this build directory), e.g. on Debian:
 ```
 www-browser ./_build/html/index.html
 ```
+
+[![Pipeline status](https://source.puri.sm/Librem5/developer.puri.sm/badges/master/build.svg)](https://source.puri.sm/Librem5/developer.puri.sm/commits/master)