Link to GPT2 model cards

README.md

@@ -20,13 +20,15 @@ metrics:
 
 ## Model description
 
-TODO
+See [Open AI's model card](https://github.com/openai/gpt-2/blob/master/model_card.md) and [Huggingface's model card](https://huggingface.co/gpt2) for the original model.
 ## Intended uses & limitations
 
 #### How to use
 
 ```python
-# You can include sample code which will be formatted
+def foo(bar)
+  bar +=1
+  return bar
 ```
 
 #### Limitations and bias