Update README.md

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README.md

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 ![Xtory](https://raw.githubusercontent.com/rzvxa/xtory/master/ScreenShots/screenshot1.png)
 
+<p align="center">
+[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)
+</p>
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 #### Please note that Xtory is early in the development stages, and it is not recommended to use it for any actual production till it reaches the first stable version release.
 
 ## What is Xtory?