Update app.py

app.py

@@ -116,7 +116,7 @@ examples = [
         "What is the total actual and/or obligated expenses of ECG Center?"
     ],
     [
-        "medical_bill_2.png",
+        "medical_bill_2.jpg",
         "患者さんは何でお金を払いますか。"
     ],
     [
@@ -157,7 +157,7 @@ prompt_files = {
     "What is the total actual and/or obligated expenses of ECG Center?": "budget_form.png",
     "Which quality component has the icon of a pen in it?": "website_design_guide.jpeg",
     "Which gift idea needs a printer?": "poster.png",
-    "患者さんは何でお金を払いますか。": "medical_bill_2.png",
+    "患者さんは何でお金を払いますか。": "medical_bill_2.jpg",
     "เบอร์โทรร้านอะไรคะ": "receipt.png"
 }