Update app.py

app.py

@@ -38,10 +38,10 @@ APP2 = {
 }
 # NEW third card (edit title/url/blurb/thumb/colors as needed)
 APP3 = {
-    "title": "ST_GeoMech_Ym",
-    "url":   "https://smart-thinking-ym.hf.space/",        # <-- replace with your Space URL
+    "title": "ST_Third_App",
+    "url":   "https://example.com/",        # <-- replace with your Space URL
     "thumb": ASSETS / "app3.png",           # <-- upload this image
-    "blurb": "Real-Time Static Young's Modulus Prediction",
+    "blurb": "Describe your third app here",
     "bg":    "#F9F6FF",   # very light purple
     "border":"#EDE6FF",   # light purple border
 }
@@ -193,4 +193,4 @@ st.markdown(
     </div>
     """,
     unsafe_allow_html=True,
-)
+)