Add link to paper

This PR adds a link to the paper in the description.

README.md

@@ -1,13 +1,16 @@
 ---
-pretty_name: Stack V2 Edu
 task_categories:
 - text-generation
+pretty_name: Stack V2 Edu
 ---
+
 # Stack V2 Edu
 
 ## Description
 We filter the [Stack V2](https://huggingface.co/datasets/bigcode/the-stack-v2) to only include code from openly licensed repositories, based on the license detection performed by the creators of Stack V2. When multiple licenses are detected in a single repository, we ensure that all of the licenses are on the [Blue Oak Council certified license list](https://blueoakcouncil.org/list). Per-document license information is available in the `license` entry of the `metadata` field of each example. Code for collecting, processing, and preparing this dataset is available in the [common-pile GitHub repo](https://github.com/r-three/common-pile).
 
+This dataset is part of the [Common Pile v0.1: An 8TB Dataset of Public Domain and Openly Licensed Text](https://huggingface.co/papers/2506.05209).
+
 ## Dataset Statistics
 | Documents | UTF-8 GB |
 |-----------|----------|
@@ -39,4 +42,4 @@ If you use this dataset, please cite:
   archivePrefix={arXiv},
   primaryClass={cs.SE}
 }
-```
+```