More accessible version of public whip database

This repository is available online at https://github.com/mysociety/publicwhip-data

If Github Pages are enabled, the URL is: https://mysociety.github.io/publicwhip-data/

Instructions on using the features of this notebook (data publishing, notebook rendering, Github Pages) are available in [https://github.com/mysociety/data_common/blob/main/data-repo-readme.md](Data Common readme file).