Update app.py

app.py

@@ -49,3 +49,5 @@ if lang is not None:
   broader_tags = lang.broader_tags()
   st.write(f"Broader tags for this language, if any: {broader_tags}")
   st.write(f"Correct, standardized, BCP-47 tag for {langtext}, according to the langcodes library: {langcodes.standardize_tag(lang)}")
+  st.write(f"Try also: {https://r12a.github.io/app-subtags/?find={langtext}}")
+