docs: update readme to move screenshots to upper position

Author: streamtw

README.md

@@ -12,6 +12,8 @@
   <a target="_blank" href="https://codeclimate.com/github/UniSharp/laravel-filemanager/maintainability"><img src="https://api.codeclimate.com/v1/badges/e51f2ef8f4d9f97268db/maintainability" /></a>
 </p>
 
+![RWD demo](https://unisharp.github.io/laravel-filemanager/images/screenshots-v2.png)
+
 <p align="center">
   <a href="http://unisharp.github.io/laravel-filemanager/">Documents</a>
 ・
@@ -50,17 +52,6 @@
  * Supports two categories: files and images. Each type works in different directory.
  * Supported locales : ar, az, bg, cs, de, el, en, es, eu, fa, fr, he, hu, id, it, ka, nl, pl, pt, pt-BR, ro, rs, ru, sk, sv, tr, uk, vi, zh-CN, zh-TW
 
-## v2.0 backlogs
-
-There are still some thing we need to do make this package better:
-* [x] Documents for v2.0.0
-* [x] Add more events for files and folders manipulation
-* [ ] Events should pass object instead of only file path
-
-We are also going to gain more integration like vue.js and Laravel Nova. Any PR is welcome!
-
-![RWD demo](https://unisharp.github.io/laravel-filemanager/images/screenshots-v2.png)
-
 ## Maintainers
 
  * [Stream](https://github.com/streamtw)