adding some examples

app.py

@@ -9,6 +9,11 @@ description = f"""
 # Twitter Terms Of Service ChatBot
 This chatbot answers questions about **Twitter terms of service** based on this [resource]({link}), The techniques used in this project
 can be used to answer questions from any kind of business or legal document.
+
+### Examples:
+try something like
+- What is twitter?
+- What actions are permitted for the users?
 """