Add pipeline tag, library, license and link to code

This PR adds missing metadata to the model card: `pipeline_tag`, `library_name`, and `license`. It also adds a link to the Github repository.

README.md

@@ -1,11 +1,17 @@
 ---
+base_model:
+- deepseek-ai/deepseek-math-7b-base
 datasets:
 - QizhiPei/MathFusionQA
 language:
 - en
-base_model:
-- deepseek-ai/deepseek-math-7b-base
+pipeline_tag: question-answering
+library_name: transformers
+license: mit
 ---
 
+Paper: [MathFusion: Enhancing Mathematic Problem-solving of LLM through Instruction Fusion](https://arxiv.org/abs/2503.16212)
+
+This model, `DeepSeekMath-7B-MathFusion`, is a fine-tuned version of `deepseek-ai/deepseek-math-7b-base` trained on the `QizhiPei/MathFusionQA` dataset. It's designed for question-answering tasks, particularly in the domain of mathematics.
 
-Paper: [MathFusion: Enhancing Mathematic Problem-solving of LLM through Instruction Fusion](https://arxiv.org/abs/2503.16212)
+Code: https://github.com/QizhiPei/MathFusion