app: minor description fix

app.py

@@ -50,7 +50,7 @@ def inference(image):
     return out.get_image()
 
 title = "DBMDZ Detectron2 Model Demo"
-description = "This demo introduces an interactive playground for our trained Detectron2 model. <br>The model was trained on image from digitized books to detect Illustration or Illumination segments on a given page. Classification threshold is set to 0.8."
+description = "This demo introduces an interactive playground for our trained Detectron2 model. <br>The model was trained on manually annotated segments from digitized books to detect Illustration or Illumination segments on a given page. Classification threshold is set to 0.8."
 article = '<p>Detectron model is available from our repository <a href="">here</a> on the Hugging Face Model Hub.</p>'
 
 gr.Interface(