[ci skip] Add source-to-image alternative

README.md

@@ -26,7 +26,8 @@ Please see the [Contributor Guide on ReadTheDocs](http://jupyter-docker-stacks.r
 
 ## Alternatives
 
-* [jupyter/repo2docker](https://github.com/jupyter/repo2docker) - Turn git repositories into Jupyter enabled Docker Images
+* [jupyter/repo2docker](https://github.com/jupyter/repo2docker) - Turn git repositories into Jupyter-enabled Docker Images
+* [openshift/source-to-image](https://github.com/openshift/source-to-image) - A tool for building/building artifacts from source and injecting into docker images
 * [jupyter-on-openshift/jupyter-notebooks](https://github.com/jupyter-on-openshift/jupyter-notebooks) - OpenShift compatible S2I builder for basic notebook images
 
 ## Resources
@@ -34,4 +35,4 @@ Please see the [Contributor Guide on ReadTheDocs](http://jupyter-docker-stacks.r
 * [Documentation on ReadTheDocs](http://jupyter-docker-stacks.readthedocs.io/)
 * [Issue Tracker on GitHub](https://github.com/jupyter/docker-stacks)
 * [Jupyter Google Group](https://groups.google.com/forum/#!forum/jupyter)
-* [Jupyter Website](https://jupyter.org)
+* [Jupyter Website](https://jupyter.org)
\ No newline at end of file