add a little link to travis status from the README

diff --git a/README b/README
index d1d40b9..cd8a33d 100644 (file)
--- a/README
+++ b/README
@@ -21,3 +21,6 @@ feedback.
 
 Cheers,
 Da SimGrid Team.
+
+
+https://travis-ci.org/mquinson/simgrid.svg?branch=master
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