Update README.md

Author: hli2020

README.md

@@ -219,8 +219,7 @@ The **diversity** of data enables models to generalize in different atmospheres
 
 ## License & Citation
 
-> Our dataset is built on top of the [nuScenes](https://www.nuscenes.org/nuscenes) and [Argoverse 2](https://www.argoverse.org/av2.html) datasets.
-> Before using the OpenLane-V2 dataset, you should agree to the terms of use of the [nuScenes](https://www.nuscenes.org/nuscenes) and [Argoverse 2](https://www.argoverse.org/av2.html) datasets respectively.
+> Prior to using the OpenLane-V2 dataset, you should agree to the terms of use of the [nuScenes](https://www.nuscenes.org/nuscenes) and [Argoverse 2](https://www.argoverse.org/av2.html) datasets respectively.
 > All code within this repository is under [Apache License 2.0](./LICENSE).
 
 Please use the following citation when referencing OpenLane-V2: