Update README.md

README.md

@@ -39,7 +39,7 @@ A collection of research papers, codes, tutorials and blogs on ML carried out in
 ## Research Papers
 ### 2020
 * [Federated Deep Reinforcement Learning for Internet of Things with Decentralized Cooperative Edge Caching](https://doi.org/10.1109/JIOT.2020.2986803), IEEE IoT journal
-* [Three Approaches for Personalization with Applications to Federated Learning] (https://arxiv.org/abs/2002.10619), preprint
+* [Three Approaches for Personalization with Applications to Federated Learning](https://arxiv.org/abs/2002.10619), preprint
 * [Salvaging Federated Learning by Local Adaptation](https://arxiv.org/abs/2002.04758), preprint
 * [Federated Learning of a Mixture of Global and Local Models](https://arxiv.org/abs/2002.05516), preprint
 * [Federated Learning with Matched Averaging](https://arxiv.org/pdf/2002.06440.pdf), ICLR 2020