add bohrium link

Author: zdcao121

README.md

@@ -64,7 +64,7 @@ Major milestones are summarized below.
 
 - CrystalFormer Quickstart [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1IMQV6OQgIGORE8FmSTmZuC5KgQwGCnDx?usp=sharing) [![Open In Bohrium](https://cdn.dp.tech/bohrium/web/static/images/open-in-bohrium.svg)](https://nb.bohrium.dp.tech/detail/68177247598): GUI notebook demonstrating the conditional generation of crystalline materials with _CrystalFormer_
 - CrystalFormer Application [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1QdkELaQXAHR1zEu2fcdfgabuoP61_wbU?usp=sharing): Generating stable crystals with a given structure prototype. This workflow can be applied to tasks that are dominated by element substitution
-- CrystalFormer-RL [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1ojSqMQzdnlWZRPOQP20nTvvIh67HXdwp#scrollTo=lKOZgUczOAxE): Reinforcement fine-tuning for materials design
+- CrystalFormer-RL [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/drive/1ojSqMQzdnlWZRPOQP20nTvvIh67HXdwp#scrollTo=lKOZgUczOAxE) [![Open In Bohrium](https://cdn.dp.tech/bohrium/web/static/images/open-in-bohrium.svg)](https://bohrium.dp.tech/notebooks/52828216135): Reinforcement fine-tuning for materials design
 
 ## Installation