ReadMe updated with KB link

jayaleshwari · web-flow · commit a75f7e425862 · 2020-11-19T09:25:40.000+05:30
diff --git a/README.md b/README.md
@@ -1,2 +1 @@
-# replace-view-header-with-custom-widget-flutter-date-range-picker
-How to replace the view header with the custom widget in Flutter date range picker (SfDateRangePicker)
+**[View document in Syncfusion Flutter Knowledge base](https://www.syncfusion.com/kb/12098/how-to-replace-the-view-header-with-the-custom-widget-in-flutter-date-range-picker)**

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1 @@`
`1`		`-# replace-view-header-with-custom-widget-flutter-date-range-picker`
`2`		`-How to replace the view header with the custom widget in Flutter date range picker (SfDateRangePicker)`
	`1`	`+[View document in Syncfusion Flutter Knowledge base](https://www.syncfusion.com/kb/12098/how-to-replace-the-view-header-with-the-custom-widget-in-flutter-date-range-picker)`