Updated README with link to the paper.

README.md

@@ -161,6 +161,10 @@ configs:
         path: poisson_grid128/poisson_grid128_test.h5
 ---
 
-**ConDiff: A Challenging Dataset for Neural Solvers of Partial Differntial Equations**
+## ConDiff: A Challenging Dataset for Neural Solvers of Partial Differntial Equations
+
+
+[Paper](https://arxiv.org/abs/2406.04709).
+
+Please see the [GitHub](https://github.com/condiff-dataset/ConDiff) page of the project for details on data generation and usage.
 
-Please see the [GitHub](https://github.com/condiff-dataset/ConDiff) page of the project for details on data generation and usage.