Update app.py

app.py

@@ -328,7 +328,7 @@ class Application:
         """
 
         st.sidebar.image("https://github.com/neuml/txtai/raw/master/logo.png", width=256)
-        st.sidebar.markdown("# Workflow builder  \n*Build and apply workflows to data*  ")
+        st.sidebar.markdown("# Workflow builder  \n*Build and apply workflows to data*  \n[GitHub](https://github.com/neuml/txtai)  ")
 
         # Get selected components
         components = ["embeddings", "segment", "service", "summary", "tabular", "transcribe", "translate"]