Running nbstripout in postBuild

Author: ipeirotis

binder/postBuild

@@ -17,4 +17,6 @@ jupyter nbextension enable spellchecker/main
 git config --global user.email "ipeirotis@gmail.com"
 git config --global user.name "Panos Ipeirotis"
 
-nbstripout --install --attributes .gitattributes
+# Install nbstripout on git and clean the notebooks
+nbstripout --install --attributes .gitattributes
+nbstripout notes/*.ipynb