add folder structure in readme

README.md

@@ -2,3 +2,41 @@
 ![python 3.8](https://img.shields.io/badge/python-3.8-brightgreen)
 # Disentangling Writer and Character Styles for Handwriting Generation
 Detailed documentation is coming.
+
+## Folder Structure
+  ```
+  SDT/
+  │
+  ├── train.py - main script to start training
+  ├── test.py - generate characters via trained model
+  ├── evaluate.py - evaluation of generated samples
+  │
+  ├── configs/*.yml - holds configuration for training
+  ├── parse_config.py - class to handle config file
+  │
+  ├── data_loader/ - anything about data loading goes here
+  │   └── loader.py
+  │
+  ├── model_zoo/ - pre-trained model
+  │
+  ├── data/ - default directory for storing experimental datasets
+  │
+  ├── model/ - networks, models and losses
+  │   ├── encoder.py
+  │   ├── gmm.py
+  │   ├── loss.py
+  │   ├── model.py
+  │   └── transformer.py
+  │
+  ├── saved/
+  │   ├── models/ - trained models are saved here
+  │   ├── tborad/ - tensorboard visualization
+  │   └── samples/ - visualization samples in the training process
+  │
+  ├── trainer/ - trainers
+  │   └── trainer.py
+  │  
+  └── utils/ - small utility functions
+      ├── util.py
+      └── logger.py - set log dir for tensorboard and logging output
+  ```