Update README.md

Author: kinkunchan

README.md

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 # The Structural EMBedding graph library (SEMB)
 
-**Authors: GEMS Lab Team @ University of Michigan** (Mark Jin, Ruowang Zhang, Mark Heimann)
+**Authors: GEMS Lab Team @ University of Michigan** ([Mark Jin](https://mark-jin.com), Ruowang Zhang, Mark Heimann)
 
 This SEMB library allows fast onboarding to get and evaluate structural node embeddings. With the unified API interface and the modular codebase, SEMB library enables easy intergration of 3rd-party methods and datasets.