**Documentation page** We need need a full example "How to" guide to illustrate `TextDataset` generation with the current implementation. **Proposal** Something similar to [this](https://patrickfleith.github.io/datafast/guides/generating_text_classification_datasets/) and [this](https://github.com/patrickfleith/datafast/blob/main/datafast/examples/test_text_generation.py) - [x] Write documentation page - [x] Link from main - [x] Test the full example before closing ticket
