Add `transformers` as the library name

Hey team!

I am Aritra from Hugging Face. This PR replaces the library_name field from vllm to transformers.

The benefits of this:

- better search-ability for models that are supported by transformers
- better download metrics
- auto generated code snippets to run inference with transformers and vLLM
- auto generate "open with colab" button
- easy deploy button with inference endpoints
- model family lineage for quantization and fine tunes

Let me know if you need any other help! Hope this PR is merged soon to get more visibility in the Hub 🤗

README.md

@@ -1,5 +1,5 @@
 ---
-library_name: vllm
+library_name: transformers
 language:
 - en
 - fr