Update app.py

Added more clarifications for the final_answer!

app.py

@@ -271,7 +271,8 @@ wikipedia_summary = # generate this from the respective results
 final_answer(web_results_summary + wikipedia_summary)
 ```
 
-Again one step at a time AND ONLY USE VARIABLES YOU HAVE ALREADY DEFINED.
+Always summarize and explain the information you plan to use for the final answer (the call to final_answer will be a stand alone prompt).
+Again one step at a time AND ONLY USE VARIABLES YOU HAVE ALREADY DEFINED. 
 
 Now Begin!
 
@@ -279,7 +280,7 @@ Now Begin!
 {{custom_instructions}}
 {%- endif %}
 
-Now Begin!
+You got this! Now Begin!
 '''
 
 agent = CodeAgent(