different images in 00_notebook-tour
different images in 00_notebook-tour

Use berkley webcam instead of google doodle in notebook-tour to be sure
to have different images in embeded vs soft linked to have a more
striking example of an always changing images that stays the same at
loading time (Embeded), vs alway up to date when using url named
argument.

ipython/ipython,ipython/ipython