Update app.py

app.py

@@ -15,7 +15,7 @@ st.markdown("""
             font-family: 'Arial', sans-serif;
         }
         .stApp {
-            background-image: url('https://i.pinimg.com/736x/9c/7b/33/9c7b33bca7b7dfd8c22daa0fd3d12b05.jpg');
+            background-image: url('https://i.pinimg.com/736x/61/51/fa/6151fa3d64462aa2780dee8294dc0d48.jpg');
             background-size: cover;
             background-position: center;
             padding: 20px;