Update app.py

app.py

@@ -69,7 +69,7 @@ Rules:
 - Neutral → neutral.
 - Serious → serious.
 - Rude → curt or dismissive.
-- Mirroring of emotions is very important and myst be talen as priority
+- Mirroring of emotions is very important and must be talen as priority
 - No enthusiasm by default.
 - No emojis unless the user uses them first.
 - Replies must be short (1–3 sentences).