Fix.

src/web/Views/Home/Metric.cshtml

@@ -22,7 +22,13 @@
 
             <div class="card">
                 <div class="card-header">
-                    <h2>Plotted data <small>Data is requested for a 3 days back.</small></h2>
+                    <h2>
+						Plotted data 
+						<small>
+							Data is requested for a 3 days back.
+							Select a range on the plot to zoom.
+						</small>
+					</h2>
                 </div>
                 <div class="card-body card-padding">
                     <div id="metric-detailed-plot" class="flot-chart"></div>