Update README.md

Author: Adrxx

README.md

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 _(Formerly **ShareableColorPalette**)_
 
-Creates a beautiful artboard with all the colors in your 'Document Colors' with its respective color label in a variety of formats.  _(Sketch 39)_ 
+Creates a beautiful artboard with all the colors in your 'Document Colors' with its respective color label in a variety of formats.  _(Sketch **41**)_ 
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+**IMPORTANT! Version 1.0.2 Works only on versions of Sketch 41 and higher**
+If you're using Sketch 39 or 40, look for the 1.0.1 release.
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