Improve description on what the model does

app.py

@@ -26,7 +26,7 @@ answer = gr.outputs.Textbox(label="Predicted answer")
 examples = [["cats.jpg", "How many cats are there?"]]
 
 title = "Interactive demo: ViLT"
-description = "Gradio Demo for ViLT (Vision and Language Transformer), fine-tuned on VQAv2. To use it, simply upload your image and type a question and click 'submit', or click one of the examples to load them. Read more at the links below."
+description = "Gradio Demo for ViLT (Vision and Language Transformer), fine-tuned on VQAv2, a model that can answer questions from images. To use it, simply upload your image and type a question and click 'submit', or click one of the examples to load them. Read more at the links below."
 article = "<p style='text-align: center'><a href='https://arxiv.org/abs/2102.03334' target='_blank'>ViLT: Vision-and-Language Transformer Without Convolution or Region Supervision</a> | <a href='https://github.com/dandelin/ViLT' target='_blank'>Github Repo</a></p>"
 
 interface = gr.Interface(fn=answer_question,