updated dockerfile to allow root permissions

Dockerfile

@@ -33,9 +33,10 @@ USER $NB_UID
 # Expose Jupyter's default port
 EXPOSE 8888
 
-# Run Jupyter Notebook, disabling token & password
+# Run Jupyter Notebook, disabling token & password, allow root access
 CMD start.sh jupyter notebook \
     --ip=0.0.0.0 --port=8888 --no-browser \
+    --allow-root\
     --NotebookApp.token= --NotebookApp.password= \
     --NotebookApp.allow_origin=* --NotebookApp.disable_check_xsrf=True \
     --NotebookApp.allow_remote_access=True \