Update app.py

app.py

@@ -58,7 +58,7 @@ fig.add_vline(x=datetime.datetime.now().strftime('%Y-%m-%d'), line_width=3, line
 fig.add_annotation({
             "x": datetime.datetime.now().strftime('%Y-%m-%d'),
             "y": fig.layout.yaxis['range'][1],
-            "ay": 0.1,
+            "yshift": 0.1,
             "text": "Today",
             "align": "left",
             "showarrow": False,