Update README.md

Author: runxel

README.md

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 # [GDL-sublime](https://github.com/runxel/GDL-sublime)
 A bundle to make GDL available in [Sublime Text](http://www.sublimetext.com/).
 
+[![Version](https://img.shields.io/badge/version-1.1.8-brightgreen.svg)]()
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 # What is GDL?
 GDL means 'Geometric Description Language'. [ArchiCAD](http://www.graphisoft.com/) uses it to define a library part.