fix typos

app.py

@@ -47,17 +47,17 @@ def predict(img: Image) -> Tuple[dict, float]:
 title = "FoodVision Mini"
 description = "EfficientNetB2 feature extractor to classify images of food as pizza, steak, or sushi."
 article = "From the [Zero to Mastery PyTorch tutorial](https://www.learnpytorch.io/09_pytorch_model_deployment/)"
-examples = [list(example) for example in Path("examples").glob("*.jpg")]
+examples = [[example] for example in Path("examples").glob("*.jpg")]
 
 demo = gr.Interface(
     fn=predict,
     inputs=gr.Image(type="pil"),
     outputs=[gr.Label(num_top_classes=3, label="Predictions"),
              gr.Number(label="Prediction time (s)")], 
-    examples=example_list,
+    examples=examples,
     title=title,
     description=description,
     article=article,
 )
 
-demo.lauch()
+demo.launch()