Create jupyter notebook with Ray Dalio's holy grail

[unbalancedparentheses]

I would like us to have a jupyter notebook that replicates this:
https://youtu.be/Nu4lHaSh7D4

The objective is to find 15-20 good uncorrelated return streams. Doing so you increases the information ratio/decreseas the risk taken to achieve an expected return.

[metdinov]

Done #90