diff --git a/README.txt b/README.md
similarity index 72%
rename from README.txt
rename to README.md
index bbab787..2762fe5 100644
--- a/README.txt
+++ b/README.md
@@ -13,3 +13,5 @@ Continuous integration
 ----------------------
 
 CI is set up in Codeship to run against PRs and commits.
+
+[![Codeship Status for ncoghlan/contextlib2](https://codeship.com/projects/884e9500-3d1a-0133-3eb0-1abe7f570a4c/status?branch=default)](https://codeship.com/projects/102388)