Notebook Proposal : Time Series Modeling with HSGP: Baby Births Example about pymc-examples

[juanitorduz]

After very insightful discussions with @bwengals, we believe this notebook can have more ambitious objectives:

1. Reference for how to use HSGP
2. Case study which illustrates some of the issues that come up with HSGPs. This Birthdays example is a great vehicle for that.
3. Illustrate Bayesian workflow, eda -> model building, and how to make a good model for a particularly complex data set.

This notebook will probably be a long one so we suggest working on self-contained iterations, i.e. after each point above is completed and passes all the requirements (pre-commit, typos, ...) we merge and continue with the next point in a different PR.

Any thoughts?

[AlexAndorra]

Great idea @juanitorduz ! That will also make our reviewing job easier ;)