Remove 'app_port' message since it is the default

app.py

@@ -5,7 +5,6 @@ word_limit = solara.reactive(10)
 @solara.component
 def Page():
     solara.Markdown("#Solara Template")
-    solara.Markdown("Remember to add the 'app_port: 7860' to the README.md file")
     # Calculate word_count within the component to ensure re-execution when reactive variables change.
     word_count = len(sentence.value.split())
     solara.SliderInt("Word limit", value=word_limit, min=2, max=20)