Document python notebooks

[petermr]

documentation

Please give a brief overview (*.md) of the new functionality in
https://github.com/petermr/CEVOpen/blob/master/searches/wikidata_lookup_python_code/compound_lookup_by_pubchem_cid.ipynb

The searches branch is designed for the results of searches and subsequent analysis.

[lubianat]

Hello, thank you for your guidance,

I have added a brief overview at https://github.com/petermr/CEVOpen/blob/master/searches/wikidata_lookup_python_code/wikidata_match.md

I was not sure if searches was the best branch, to add this code, but it was upstream of the compound_multisetCopy.tsv table.

[petermr]

It's always difficult to know whether to separate code from data. If the key point is to support compound then it's probably in the right place. If the key point is to start introducing IPython then maybe it shoul go is a scripts directory somewhere.