[Discussion] How to design the structure of tutorials with two versions (notebook and python)

We will provide tutorials with two versions, notebook and python. The python version will be more efficient to debug locally step by step. The notebook .ipynb can be obtained by directly copying from corresponding .py except the front install commands.

There may be several structures:
1. Like the current architecture in FinRL-Meta, tutorials_notebook and tutorials_python
2. tutorials -> 1-Introduction_notebook
1-Introduction_python
3. tutorials -> 1-Introduction -> FinRL_StockTrading_NeurIPS_2018 -> FinRL_StockTrading_NeurIPS_2018.py, FinRL_StockTrading_NeurIPS_2018.ipynb

Would you like to provide any ideas, or suggestions for the file structure? Moreover, the reasons of your suggestion are also welcome. Thanks very much.