Updated ReadMe reflect changelog

Author: bharathm03

ReadMe.md

@@ -6,14 +6,6 @@ Essential JS 2 is a modern JavaScript UI toolkit that has been the built from th
 * [Pure JS Demos](http://ej2.syncfusion.com/demos/)  
 * [Pure JS Documentation](http://ej2.syncfusion.com/documentation/)
 
-# 1.0.10
-
-# 1.0.10-preview (2017-07-05)
-
-## New Components
-
-- Added Tooltip component - [demos](http://ej2.syncfusion.com/demos/#/tooltip/default.html)
-
 ## Installing
 
 To install all dependent packages, use the below command
@@ -28,4 +20,12 @@ To compile the source files, use the below command
 
 ```
 npm run build
-```
+```
+
+## Changelog
+
+### 1.0.10-preview (2017-07-05)
+
+#### New Components
+
+- Added Tooltip component - [demos](http://ej2.syncfusion.com/demos/#/tooltip/default.html)