Update README.md

README.md

@@ -1,4 +1,5 @@
 [![DOI](https://zenodo.org/badge/284307852.svg)](https://zenodo.org/badge/latestdoi/284307852)
+[dual project: sketches repository](https://github.com/gbrault/jupytersketches.git)
 ![Gallery](fig/JupyterPySketcher.png)
 
 ## jupytersketcher