Update README.md with license information

We (01.AI) have updated our license from yi-license to apache-2.0.
Since apache-2.0 enables more free and flexible use and distribution, promoting open collaboration and innovation, we kindly advise that all Yi derivatives currently under the yi-license be updated to the apache-2.0 license.
Thanks for your understanding and cooperation.

README.md

@@ -1,10 +1,8 @@
 ---
-license: other
 tags:
 - yi
 - moe
-license_name: yi-license
-license_link: https://huggingface.co/01-ai/Yi-34B-200K/blob/main/LICENSE
+license: apache-2.0
 ---
 UPDATE!
 GGUF Format is ready at [cloudyu/Yi-34Bx2-MoE-60B-GGUF](https://huggingface.co/cloudyu/Yi-34Bx2-MoE-60B-GGUF)