fix typo

app.py

@@ -110,7 +110,7 @@ def stacked_model(model1,model2,model3):
 title = "Combine predictors using stacking"
 with gr.Blocks(title=title) as demo:
     gr.Markdown(f"## {title}")
-    gr.Markdown("This app demonstrates combining 3 predictors trained on Ames housing dataset from OpenML using stacking. This app is developed based on [scikit-example](https://scikit-learn.org/stable/auto_examples/ensemble/plot_stack_predictors.html#sphx-glr-auto-examples-ensemble-plot-stack-predictors-py)")
+    gr.Markdown("This app demonstrates combining 3 predictors trained on Ames housing dataset from OpenML using stacking. This app is developed based on [scikit-learn example](https://scikit-learn.org/stable/auto_examples/ensemble/plot_stack_predictors.html#sphx-glr-auto-examples-ensemble-plot-stack-predictors-py)")
 
     model1 = gr.Textbox(label="Repo id of first model")
     model2 = gr.Textbox(label="Repo id of second model")