Update README.md

The Peach-9B-8k-Roleplay model is truly impressive! We would love to contribute by updating the README to include the base_model information. This will help address the current gap in the model card. Thank you for your consideration!

README.md

@@ -8,6 +8,8 @@ tags:
 - roleplay
 - rp
 - character
+base_model:
+- 01-ai/Yi-1.5-9B
 ---
 
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