update README

README.md

@@ -1,2 +1,9 @@
 # ADDA.PyTorch
 implement Adversarial Discriminative Domain Adapation in PyTorch
+
+
+## Example
+```
+$ python train_source.py --logdir outputs
+$ python main.py --logdir outputs --trained outputs/best_model.pt --slope 0.2
+```