Add `transformers` as library_name

This update will explicitly tag this model as a `transformers` model, which will automatically add code snippets and deploy buttons on the model page. It will also help referencing the model on the platform.

README.md

@@ -7,10 +7,11 @@ base_model:
 - Qwen/Qwen2-7B
 pipeline_tag: image-text-to-text
 tags:
-  - multimodal
-  - olmo
-  - molmo
-  - pixmo
+- multimodal
+- olmo
+- molmo
+- pixmo
+library_name: transformers
 ---
 
 <img src="molmo_logo.png" alt="Logo for the Molmo Project" style="width: auto; height: 50px;">
@@ -183,4 +184,4 @@ processor = AutoProcessor.from_pretrained(
 ## License and Use
 
 This model is licensed under Apache 2.0. It is intended for research and educational use.
-For more information, please see our [Responsible Use Guidelines](https://allenai.org/responsible-use).
+For more information, please see our [Responsible Use Guidelines](https://allenai.org/responsible-use).