Add Jupyter Notebook Binder to repo README.md

[datatalking]

So I've been able to replace most if not all of the Morningstar data feed, have questions on pandasdataframe integration, but while I work on those can we add or adjust the repo to show a link for a juypter notebook binder?

https://mybinder.org

If @caiobran will approve I will work on a PR to submit it.

[datatalking]

This is a current link I have setup
(https://hub.gke2.mybinder.org/user/caiobran-mstables-pusb9n41/lab/tree/data_overview.ipynb)

not sure which one will open for you.

Many of the functions don't import as they haven't been installed, one of the good features of binder notebook is they are normal jupyter but are html ready for users to interact with.

The database is not loading, can we save a sample .db file for it to access with a note that data is temprorary. Then when user installs the program with full instructions the database is created.

When that database is created it is using the new data source I have found.

My apologies again for piling on the issues but they are all related to the new datasource vs Morningstar. I also have another user who wants to be a contributor and two more people interested.

@caiobran

Here the notebook is generating errors, what testing could I write in that would catch these?
IndexError: index 0 is out of bounds for axis 0 with size 0

See screen shot below.