Add metadata (pipeline tag, library, license)

This PR improves the model card by adding essential metadata: `pipeline_tag: any-to-any`, `library_name: diffusers`, and `license: apache-2.0`. This ensures better discoverability on the Hugging Face Hub and provides clearer information about the model's capabilities and licensing.

README.md

@@ -1,3 +1,9 @@
+---
+pipeline_tag: any-to-any
+library_name: diffusers
+license: apache-2.0
+---
+
 <p align="center">
   <img src="https://lf3-static.bytednsdoc.com/obj/eden-cn/nuhojubrps/banner.png" alt="BAGEL" width="480"/>
 </p>
@@ -15,6 +21,12 @@
       alt="BAGEL Paper on arXiv"
     />
   </a>
+  <a href="https://github.com/bytedance-seed/BAGEL">
+    <img
+      src="https://img.shields.io/badge/GitHub-Code-black?logo=github&logoColor=white"
+      alt="BAGEL Official Code"
+    />
+  </a>
   <a href="https://huggingface.co/JiaxinGe/Diffusers-BAGEL">
     <img
       src="https://img.shields.io/badge/BAGEL–Diffusers-FF6C37?logo=huggingface&logoColor=white"
@@ -101,4 +113,4 @@ print(out['text'])
 * `timestep_shift`: offset of denoising schedule
 * `cfg_renorm_min` / `cfg_renorm_type`: renormalization settings for CFG
 
-For detailed explanations, see the original [BAGEL](https://github.com/bytedance-seed/BAGEL) repository.
+For detailed explanations, see the original [BAGEL](https://github.com/bytedance-seed/BAGEL) repository.