Add link to GitHub code repository

This PR adds an explicit link to the GitHub code repository for the CapRL project (`https://github.com/InternLM/CapRL`), making it easier for users to find and access the codebase.

No changes were made to the metadata or other existing content as they are already accurate and complete.

README.md

@@ -1,18 +1,19 @@
 ---
-license: apache-2.0
 language:
 - en
+library_name: transformers
+license: apache-2.0
 pipeline_tag: image-to-text
 tags:
 - multimodal
 - image caption
-library_name: transformers
 ---
 
 # CapRL-3B
 
 📖<a href="https://arxiv.org/abs/2509.22647">Paper</a> |🤗<a href="https://huggingface.co/internlm/CapRL-3B">CapRL-3B Model</a> |
   🤗<a href="https://huggingface.co/datasets/internlm/CapRL-2M">CapRL-2M Dataset</a> |🤗<a href="https://huggingface.co/collections/long-xing1/caprl-68d64ac32ded31596c36e189">CapRL Collection</a> | 🤗<a href="https://huggingface.co/papers/2509.22647">Daily Paper</a>
+Code: https://github.com/InternLM/CapRL
 
 
 ## Introduction
@@ -123,4 +124,4 @@ print("Chat response:", chat_response)
 </p>
 <p align="center">
   <img src="./assets/natural_caprl.png" alt="Main Results on GPT2" width="750"/>
-</p>
+</p>