Updating `library_name` and `pipeline_tag` in Model Card

Hi!

Sergio from HF here. Congrats on the release :)
I'm updating the `library_name` and `pipeline_tag` for the model to improve its visibility and reproducibility.

Using the most appropriate `library_name` and `pipeline_tag` ensures the model is automatically indexed in the Hub's Models tab and enables features like the **“Use this model”** button.

%3Cbr%2F%3E%3Cbr%2F%3EResulting in something like this when we access `Use this model`:

%3Cbr%2F%3E%3Cbr%2F%3EIncorporating examples and filling out the Model Card also greatly improves visibility, so we recommend spending some time on it 🙂
Happy to help if you have any further questions!

README.md

@@ -8,7 +8,8 @@ metrics:
 - accuracy
 base_model:
 - Qwen/Qwen2.5-VL-7B-Instruct
-pipeline_tag: question-answering
+pipeline_tag: image-text-to-text
+library_name: transformers
 ---
 
 This is the model trained with https://github.com/TIGER-AI-Lab/Pixel-Reasoner/.