Add paper link to connect the model to its paper

README.md

@@ -45,4 +45,8 @@ print(tokenizer.decode(outputs[0]))
 
 ## Notice
 
-Zamba is a pretrained base model and therefore does not have any moderation mechanism.
+Zamba is a pretrained base model and therefore does not have any moderation mechanism.
+
+## Paper
+
+arxiv.org/abs/2405.16712