Update README.md

Author: ssh4net

README.md

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+![Solidify](https://github.com/ssh4net/Solidify/assets/3924000/c3d297bd-24e7-4de2-93c7-5c8d74c9767d)
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 # Solidify
 Small GUI utility on top of OpenImageIO and QT5 to Solidify (fill, push-pull) empty areas in textures.
 
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 Run Solidify.exe and drag&drop images into open window.
 Check console to progress information.
 
+![Screenshot](https://github.com/ssh4net/Solidify/assets/3924000/3b8562f6-ca73-49f6-a3b1-b9e1f4cbc8ac)
+
 Tool expecting RGBA image file. Output files will be write in same folder as a source files with a name **Source_file_name_fill.ext** as RGB without alpha channel.
 
 License