add cudf example
Firstly, thanks a lot for this project and hosting so many datasets!

This PR add an example for how to read in data using cudf. This can be useful if you have access to a GPU and want to use the GPU to accelerate any ETL.

The code works and can be testing in this google colab notebook: https://colab.research.google.com/drive/1KrhARlJMPoaIpHqE9X2fMQFcYTLffrem?usp=sharing


add cudf example: Firstly, thanks a lot for this project and hosting so many datasets!

This PR add an example for how to read in data using cudf. This can be useful if you have access to a GPU and want to use the GPU to accelerate any ETL.

The code works and can be testing in this google colab notebook: https://colab.research.google.com/drive/1KrhARlJMPoaIpHqE9X2fMQFcYTLffrem?usp=sharing

