Remove qEHIV citation on README, add link to papers instead. (#620)

Summary:
See #617. This will require a new stable website to be pushed for the link to work.

Pull Request resolved: #620

Reviewed By: sdaulton

Differential Revision: D25386876

Pulled By: Balandat

fbshipit-source-id: e11eaa735ef1464c557b02b5fdfb85a4c0a647e7

Author: Balandat

README.md

@@ -161,18 +161,7 @@ If you use BoTorch, please cite the following paper:
 }
 ```
 
-If you use q-Expected Hypervolume Improvement, q-ParEGO, or analytic Expected Hypervolume Improvement with auto-differentiation, please also cite the following paper:
-> [S. Daulton, M. Balandat, and E. Bakshy. Differentiable Expected Hypervolume Improvement for Parallel Multi-Objective Bayesian Optimization. Advances in Neural Information Processing Systems 33, 2020.](https://arxiv.org/abs/2006.05078)
-
-```
-@inproceedings{daulton2020ehvi,
-  title={{Differentiable Expected Hypervolume Improvement for Parallel Multi-Objective Bayesian Optimization}},
-  author={Daulton, Samuel and Balandat, Maximilian and Bakshy, Eytan},
-  booktitle={Advances in Neural Information Processing Systems 33},
-  year={2020},
-  url = {https://arxiv.org/abs/2006.05078}
-}
-```
+See [here](https://botorch.org/docs/papers) for an incomplete selection of peer-reviewed papers that build off of BoTorch.
 
 
 ## Contributing