Include missing install command in README (#28)

jisantuc · web-flow · commit 32d86d9cfb54 · 2017-09-27T15:59:11.000-04:00
diff --git a/README.rst b/README.rst
@@ -45,6 +45,7 @@ Then, enable widgets and leaflet in in jupyter notebooks:
 
 .. code:: bash
 
+   $ jupyter nbextension install --py --symlink --sys-prefix widgetsnbextension
    $ jupyter nbextension enable --py --sys-prefix widgetsnbextension 
    $ jupyter nbextension install --py --symlink --sys-prefix ipyleaflet
    $ jupyter nbextension enable --py --sys-prefix ipyleaflet
