Minor fix for paper reference

README.md

@@ -16,7 +16,7 @@ tags:
 In pursuit of the universal functional for density functional theory
 (DFT), the OneDFT team from Microsoft Research AI for Science has
 developed the Skala-1.0 exchange-correlation functional, as introduced
-in [Accurate and scalable exchange-correlation with deep learning,
+in [Accurate and scalable exchange-correlation with deep learning (arXiv v5),
 Luise et al. 2025](https://arxiv.org/abs/2506.14665v5). This
 approach departs from the traditional route of incorporating
 increasingly expensive hand-designed non-local features from Jacob\'s
@@ -203,7 +203,7 @@ The training datapoints are preprocessed as follows.
 
 The training hyperparameter settings are detailed in the supplementary
 material of [Accurate and scalable exchange-correlation with deep
-learning, Luise et al. 2025](https://arxiv.org/abs/2506.14665v5).
+learning (arXiv v5), Luise et al. 2025](https://arxiv.org/abs/2506.14665v5).
 
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