Update app.py

app.py

@@ -178,7 +178,7 @@ def error(option):
     option = str(option).replace(" ","%20")
     st.markdown(f"""
             We have not found compounds for this illness; for more information visit this link:
-            [Chemble](https://www.ebi.ac.uk/chembl/g/#search_results/all/query={option})
+            [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query={option})
                """, unsafe_allow_html=True)
 
 ### If you insert an image