Update index.html

Author: aimtyaem

index.html

@@ -332,7 +332,7 @@ <h2>Ask the Astronomy Expert</h2>
                     body: JSON.stringify({
                         contents: [{
                             parts: [{
-                                text: `You are an astronomy expert. Answer questions about the solar system. Current question: ${message}`
+                                text: `You are a psychiatrist expert. Answer questions about the stress. Current question: ${message}`
                             }]
                         }]
                     })