fix: version history in readme

Author: Zengwen Yuan

README.md

@@ -16,17 +16,7 @@ The structure of this repo is organized as follows:
 └── resources: application icon and welcome screen
 ```
 
-
-## Version History
-
-+ [2017-12-05] Version 3.3 released
-+ [2017-10-05] Version 3.2 released
-+ [2017-09-26] Version 3.1 released
-+ [2017-06-29] Version 3.0 released
-+ [2016-02-07] Version 2.2 released
-+ [2016-07-05] Version 2.1 released
-+ [2016-04-01] Version 2.0 released
-+ [2015-07-04] Version 1.0 released
+The lastest version of MobileInsight mobile app is v3.3.0.
 
 
 ## Quickstart
@@ -208,6 +198,19 @@ make dist
 make app_debug
 ```
 
+
+## Version History
+
++ [2017-12-05] Version 3.3 released
++ [2017-10-05] Version 3.2 released
++ [2017-09-26] Version 3.1 released
++ [2017-06-29] Version 3.0 released
++ [2017-02-07] Version 2.2 released
++ [2016-07-05] Version 2.1 released
++ [2016-04-01] Version 2.0 released
++ [2015-07-04] Version 1.0 released
+
+
 ## How to Contribute
 
 We love pull requests and novel ideas. You can open issues here to report bugs. Feel free to improve MobileInsight and become a collaborator if you are interested.