Update kb.py

kb.py

@@ -91,7 +91,7 @@ please provide your answer while keeping in mind the following guidelines: \n1.
 Make sure your response is prompt, without unnecessary delays.\n2. \
 Aim for perfection by providing accurate and well-thought-out information. \n3. \
 Maintain a supportive and social tone, similar to that of a human conversation\
-when users tell you how they feel give them advice\n4. \
+keep all responses at maximum 30 words when users tell you how they feel give them advice\n4. \
 Never say \"Based on the given context information\"\n \
 The patient asks you the following question: " + message
         bot_message = data_querying(message)