Update app.py

app.py

@@ -36,6 +36,7 @@ if lang is None:
     lang = found
     st.write(f"* Natural language search found the following BCP-47 tag: {lang}")
   except LookupError as e:
+    st.write("## Result: failure!")
     st.write(f"Unable to look up language code. But all hope is not lost...")
     st.write(f"* You can also try https://r12a.github.io/app-subtags/")
     st.write(f"* Or possibly https://glottolog.org/glottolog?search={langtext}")