Add library name, pipeline tag and link to code

This PR adds the `library_name` and `pipeline_tag` metadata to the model card, specifying that the model uses the Hugging Face Transformers library and is for text generation. It also adds a direct link to the GitHub repository for easier access to the code.

README.md

@@ -1,16 +1,20 @@
 ---
-license: apache-2.0
+base_model:
+- deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B
 datasets:
 - knoveleng/open-rs
 language:
 - en
+license: apache-2.0
 metrics:
 - accuracy
-base_model:
-- deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B
+library_name: transformers
+pipeline_tag: text-generation
 ---
-GPG: A Simple and Strong Reinforcement Learning
-Baseline for Model Reasoning
+
+GPG: A Simple and Strong Reinforcement Learning Baseline for Model Reasoning
 https://arxiv.org/abs/2504.02546
 
-The RL model trained on the Open-r1 dataset based on GPG, using DeepSeek-R1-Distill-Qwen-1.5B as the baseline model.
+The RL model trained on the Open-r1 dataset based on GPG, using DeepSeek-R1-Distill-Qwen-1.5B as the baseline model.
+
+Code: https://github.com/AMAP-ML/GPG