README.md edited online with Bitbucket

README.md

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 To render correctly, Blendish needs both [icon sheet](https://svn.blender.org/svnroot/bf-blender/trunk/blender/release/datafiles/blender_icons16.png) and [font](https://svn.blender.org/svnroot/bf-blender/trunk/blender/release/datafiles/fonts/) from the 
 Blender repository. See source code for more information.
 
-![blendish_demo.png](https://bitbucket.org/repo/zAzpBG/images/3891331937-blendish_demo.png)
+![blendish_demo.png](https://bitbucket.org/repo/zAzpBG/images/3891331937-blendish_demo.png)
+
+![oui_logo.png](https://bitbucket.org/repo/zAzpBG/images/4211571908-oui_logo.png)
+
+The repository also hosts **OUI** (short for "Open UI", spoken like the french "oui" for "yes"), a platform agnostic single-header C library for layouting GUI elements and
+handling related user input. Together with a set of widget drawing and logic routines it can be used to build complex user interfaces.