Update app.py

slight description change

app.py

@@ -32,7 +32,7 @@ def predict_plant(path):
     return confidences
 
 # describe the model
-title = "Leaftracker Interactive Model"
+title = "LeafTracker Interactive Model"
 description = """Leaftracker is an image classification model that differentiates toxic plants from their
                  non-toxic look-alikes. Built on TensorFlow, this interactive model has been ported to
                  Hugging Face as a web application. For further documentation, check out the Github