Update README.md

README.md

@@ -26,7 +26,7 @@ We are exploring [Open R1](https://github.com/huggingface/open-r1), a groundbrea
 | March 7th, 2025 | No-Code Exam and Certification |
 | March 14th, 2025 | Next Practical Exercise |
 | March 21st, 2025 | Interactive code review |
-| March 2025 | [Unsloth Exercise](https://huggingface.co/datasets/unsloth) on fine-tuning a model with GRPO |
+| March 2025 | [Unsloth](https://huggingface.co/unsloth) exercise on fine-tuning a model with GRPO |
 | April 2025 | More written material on building reasoning models |
 | April 2025 | Live sessions on building Open R1 |
 | April 2025 | Code Exam and Certification |