Updated README.md file

Author: Anandh-SF4665

README.md

@@ -2,6 +2,39 @@
 
 This example demonstrates how to set margin and padding to Xamarin.Forms listview.
 
+## Sample
+
+```xaml
+<Grid BackgroundColor="DarkBlue" >
+    <syncfusion:SfListView x:Name="listView" SelectionMode="None" BackgroundColor="LightGray" 
+                            ItemSize="70" Margin="15" Padding="25"
+                            ItemsSource="{Binding contactsinfo}">
+        <syncfusion:SfListView.GroupHeaderTemplate>
+            <DataTemplate>
+                <ViewCell>
+                    <Label Text="{Binding Key}" FontAttributes="Bold" FontSize="24"/>
+                </ViewCell>
+            </DataTemplate>
+        </syncfusion:SfListView.GroupHeaderTemplate>
+        
+        <syncfusion:SfListView.ItemTemplate>
+            <DataTemplate>
+                <ViewCell>
+                    <ViewCell.View>
+                        <Grid x:Name="grid" >
+                            <code>
+                            . . .
+                            . . .
+                            <code>
+                        </Grid>
+                    </ViewCell.View>
+                </ViewCell>
+            </DataTemplate>
+        </syncfusion:SfListView.ItemTemplate>
+    </syncfusion:SfListView>
+</Grid>
+```
+
 See [How to set a margin and padding to the Xamarin.Forms listview?](https://www.syncfusion.com/kb/9958/how-to-set-a-margin-and-padding-to-the-xamarin-forms-listview) for more details.
 
 ## Requirements to run the demo