title: ipython notebook anchor link to refer a cell directly from outside
body: <p>I am writing documentation for a notebook-based framework. When referring to important cells in a demo-notebook, can I point to a particular cell by using some sort of anchor?</p>
  
  <p>For example if I have the demo-notebook at  127.0.0.1/mydemo, is it possible to refer to the input cell In[10] by some anchor tag like 127.0.0.1/mydemo#In10</p>