Update app.py

app.py

@@ -224,4 +224,5 @@ with tab_about:
     st.markdown(
         "This is an initiative by the [OpenWorm project](https://openworm.org) to investigate the use of LLMs for interacting with scientific literature and structured datasets related to _C. elegans_."
     )
+    st.markdown("See also [https://github.com/openworm/openworm.ai](https://github.com/openworm/openworm.ai).")
     st.markdown("**Work in progress!!** Subject to change/removal without notice!")