Fix broken link to cutlass in README.md
@@ -42,7 +42,7 @@ To build this buildpack, run the following command from the buildpack's director
### Testing
-Buildpacks use the [Cutlass](https://github.com/cloudfoundry/libbuildpack/cutlass) framework for running integration tests.
+Buildpacks use the [Cutlass](https://github.com/cloudfoundry/libbuildpack/tree/master/cutlass) framework for running integration tests.
To test this buildpack, run the following command from the buildpack's directory:
