🔒 pin tests.yml actions to commit SHAs (#721)

.github/workflows/tests.yml

@@ -16,9 +16,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
       - name: Setup Python environment
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065  # v5
         with:
           python-version: 3.10.10
       - name: Install dependencies

README.md

@@ -299,6 +299,7 @@ Make sure your dataset contains a `verification_info` column with the following
         }
     ],
 }
+```
 
 For example, to train a smol model on Python problems, start the vLLM server:
 
@@ -798,7 +799,7 @@ If you find this project is useful in your own work, please consider citing as f
 @misc{openr1,
     title = {Open R1: A fully open reproduction of DeepSeek-R1},
     url = {https://github.com/huggingface/open-r1},
-    author = {Hugging Face},
+    author = {{Hugging Face}},
     month = {January},
     year = {2025}
 }