Update README.md with license information

Hi, I'm Chen, a DevRel specialist from 01.AI.
We have updated our license from yi-license to apache-2.0, and this PR is about the update for your model.
Apache-2.0 enables more free and flexible use and distribution, promoting open collaboration and innovation.
If it looks good to you, you can update other Yi model derivatives now licensed under yi-license to apache-2.0 on your own.
Thanks for your understanding and cooperation.

README.md

@@ -1,10 +1,7 @@
 ---
-license: other
 tags:
 - mergekit
 - merge
-license_name: yi-license
-license_link: https://huggingface.co/01-ai/Yi-34B-200K/blob/main/LICENSE
 model-index:
 - name: Bagel-Hermes-34B-Slerp
   results:
@@ -108,6 +105,7 @@ model-index:
     source:
       url: https://huggingface.co/spaces/HuggingFaceH4/open_llm_leaderboard?query=Weyaxi/Bagel-Hermes-34B-Slerp
       name: Open LLM Leaderboard
+license: apache-2.0
 ---
 # Bagel-Hermes-34B-Slerp