Add link to paper and license metadata

This PR adds the link to the paper [APIGen-MT: Agentic Pipeline for Multi-Turn Data Generation via Simulated Agent-Human Interplay](https://huggingface.co/papers/2504.03601) and adds the license metadata.

README.md

@@ -1,9 +1,10 @@
 ---
-license: cc-by-nc-4.0
 datasets:
 - Salesforce/xlam-function-calling-60k
 language:
 - en
+library_name: transformers
+license: cc-by-nc-4.0
 pipeline_tag: text-generation
 tags:
 - function-calling
@@ -13,9 +14,9 @@ tags:
 - qwen
 - pytorch
 - LLaMA-factory
-library_name: transformers
 ---
 
+```markdown
 <p align="center">
 <img width="500px" alt="xLAM" src="https://huggingface.co/datasets/jianguozhang/logos/resolve/main/xlam-no-background.png">
 </p>
@@ -216,4 +217,4 @@ Additionally, please check our other related works regarding xLAM and consider c
   year={2024}
 }
 ```
-
+```