Update app.py

app.py

@@ -279,7 +279,7 @@ elif viz_type == "Complaints Over Time":
     The use of a blue color scheme highlights the flow and continuity of the data, providing a clear view of the patterns over time.
     """)
 
-elif iz_type == "Complaints by Housing Block and Type":
+elif viz_type == "Complaints by Housing Block and Type":
     st.subheader("Complaints by Housing Block and Type")
     
     if housing_block != 'All Blocks':