Update README.md

Author: erwan-joly

README.md

@@ -5,7 +5,7 @@
 </p>
 
 [![NuGet](https://img.shields.io/nuget/v/NosCore.PathFinder.svg?style=flat-square)](https://www.nuget.org/packages/NosCore.PathFinder/)
-[![Travis build status](https://travis-ci.org/NosCoreIO/NosCore.PathFinder.svg?branch=master)](https://travis-ci.org/NosCoreIO/NosCore.PathFinder)
+[![Travis build status](https://travis-ci.com/NosCoreIO/NosCore.PathFinder.svg?branch=master)](https://travis-ci.org/NosCoreIO/NosCore.PathFinder)
 
 ## You like our work ? ##
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