added comments to clarify when the agentController is used

app.py

@@ -54,16 +54,19 @@ question_text = get_question()
 if question_text and len(question_text) > 1:
     output=""
     if option_mode == "Internal-Sales":
+        # not going through the agentController
         output = salesAgent(question_text)
     elif option_mode == "Internal-Merchant":
+        # not going through the agentController
         output = chinookAgent(question_text, option_llm)
     elif option_mode.startswith("Chat"):
+        # not going through the agentController
         response = chatAgent(question_text)
         if response and response.content:
             output = response.content
         else:
             output = response
-    else:
+    else: # DEFAULT DEMO: through agentController
         output = agentController(question_text, option_llm)
 
     height = min(2*len(output), 280)