fix spelling error

app.py

@@ -61,6 +61,6 @@ gr.Interface(
     outputs=[text_output, highlighted_text_output],
     title=title,
     description=description,
-    examples=[["saple.wav", "the quick brown fox jumped over the lazy dog"]]
+    examples=[["sample.wav", "the quick brown fox jumped over the lazy dog"]]
 ).launch(debug=True)