Fix dataset documentation links to use /datasets/ path.

README.md

@@ -107,7 +107,7 @@ If you use this model in your research, please cite the federal_reserve_system:
 }
 ```
 
-For more details, refer to the [federal_reserve_system dataset documentation](https://huggingface.co/gtfintechlab/federal_reserve_system).
+For more details, refer to the [federal_reserve_system dataset documentation](https://huggingface.co/datasets/gtfintechlab/federal_reserve_system).
 
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