Include schema (not diagram) of repo structure in README

[ronnyhdez]

Related to #31

For final documentation and better communication create a diagram with the repo structure and definition of folders/files that could generate confusion.

[ronnyhdez]

reclaimed_sites_ab/
├── leaftoolbox/
│   ├── __init__.py
│   ├── leaf.py
│   ├── module1.py
│   ├── module2.py
├── notebooks/
│   └── leaf_process.ipynb
│   └── abandoned_wells.qmd
│   └── other.qmd
├── data/
│   └── dataset.csv
├── scripts/
│   └── run_filter.py
├── .gitignore
├── README.md
└── requirements.txt

[ronnyhdez]

Ref #104