Update app.py

app.py

@@ -167,7 +167,7 @@ if run_button:
         barmode="group",
         xaxis=dict(
         tickformat="%Y-%m-%d",
-        dtick="D1",  # one tick per day
+        dtick="D3",  # one tick per day
         tickangle=-45
         ),
         xaxis_title="Date",