Added description in app

examples/dash/plotly-large-dataset/combined/app.py

@@ -13,6 +13,8 @@
 
 app.layout = html.Div(children=[
     html.H1("Plotting Large Datasets in Dash"),
+    html.H2("""Downsampled figure: Departure delay time of around 3 
+million flights in the first half (1/1-6/30) of 2006"""),
     html.P("Select range of flight dates to visualize"),
     dcc.DatePickerRange(
         id="date-picker-select",
@@ -22,6 +24,12 @@
         max_date_allowed=dt(2006, 7, 1),
         initial_visible_month=dt(2006, 1, 1),
     ),
+    html.Div("""Click on the graph and drag 
+your cursor around to zoom into any part of the graph you want."""
+            , style={"margin-top": "10px"}),
+    html.Div("""To revert the figure to its original state, click on the 
+'Reset axes' button at the upper right corner of the figure."""
+            , style={"margin-top": "10px"}),
     dcc.Graph(id='example-graph'),
 
 ])

examples/dash/plotly-large-dataset/resampler/app.py

@@ -13,6 +13,8 @@
 
 app.layout = html.Div(children=[
     html.H1("Plotting Large Datasets in Dash"),
+    html.H2("""Downsampled figure: Departure delay time of around 3 
+million flights in the first half (1/1-6/30) of 2006"""),
     html.P("Select range of flight dates to visualize"),
     dcc.DatePickerRange(
         id="date-picker-select",
@@ -22,6 +24,12 @@
         max_date_allowed=dt(2006, 7, 1),
         initial_visible_month=dt(2006, 1, 1),
     ),
+    html.Div("""Click on the graph and drag 
+your cursor around to zoom into any part of the graph you want."""
+            , style={"margin-top": "10px"}),
+    html.Div("""To revert the figure to its original state, click on the 
+'Reset axes' button at the upper right corner of the figure."""
+            , style={"margin-top": "10px"}),
     dcc.Graph(id='example-graph'),
 
 ])

examples/dash/plotly-large-dataset/webgl/app.py

@@ -35,6 +35,13 @@
 
 app.layout = html.Div(children=[
     html.H1("Plotting Large Datasets in Dash"),
+    html.H2("""Downsampled figure: Departure delay time of around 3 
+million flights in the first half (1/1-6/30) of 2006"""),
+    html.Div("""Click on the graph and drag 
+your cursor around to zoom into any part of the graph you want."""
+            , style={"margin-top": "10px"}),
+    html.Div("""To revert the figure to its original state, click on the 
+'Reset axes' button at the upper right corner of the figure."""
+            , style={"margin-top": "10px"}),
     dcc.Graph(id='example-graph', figure=fig),
-
 ])