Update README.md

README.md

@@ -135,4 +135,4 @@ SentenceTransformer(
 
 ## More Information
 
-Read more about this model and how it was built in [this article](https://hf.co/blog/neuml/bert-hash-embeddings).
+Read more about the model in [this article](https://hf.co/blog/neuml/bert-hash-embeddings) and [this paper](https://github.com/neuml/papers/blob/master/bert-hash-embeddings/bert-hash-embeddings.pdf).