Update README.md

Added discord.

README.md

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 [S. R. Jha](https://github.com/Phionx), [S. Chowdhury](https://github.com/shoumikdc), [M. Hays](https://scholar.google.com/citations?user=06z0MjwAAAAJ), [J. A. Grover](https://scholar.google.com/citations?user=igewch8AAAAJ), [W. D. Oliver](https://scholar.google.com/citations?user=4vNbnqcAAAAJ&hl=en)
 
-***Docs:** [https://equs.github.io/jaxquantum](https://equs.github.io/jaxquantum)
+**Docs:** [equs.github.io/jaxquantum](https://equs.github.io/jaxquantum)
+
+**Community Discord:** [discord.gg/frWqbjvZ4s](https://discord.gg/frWqbjvZ4s)
 
 `jaxquantum` leverages [JAX](https://github.com/google/jax) to enable the auto differentiable and (CPU, GPU, TPU) accelerated simulation of quantum dynamical systems, including tooling such as operator construction, unitary evolution and master equation solving. As such, `jaxquantum` serves as a QuTiP drop-in replacement written entirely in JAX.