Update Dockerfile

Dockerfile

@@ -29,10 +29,11 @@ RUN apt-get update && \
      libhdf5-dev \
      libgit2-dev 
 #    vim
-USER ${NB_USER}
 
 RUN echo "options(defaultPackages=c(getOption('defaultPackages'),'renkur'))" >> /usr/local/lib/R/etc/Rprofile.site
 
+USER ${NB_USER}
+
 # install the R dependencies
 COPY install.R /tmp/
 RUN R -f /tmp/install.R