Update README.md

Author: Serhii-the-Dev

README.md

@@ -4,5 +4,5 @@ fb2-thumbnails-provider
 Windows 7 x86/x64 compatible shell extension for previewing of thumbnails of FB2 books
 
 The code is based on this article: http://www.codemonkeycodes.com/2010/01/11/ithumbnailprovider-re-visited/
-Visual Studio 2012 Express can be used to create a binary file. By default it's requires .NET framework 4.0.
+Visual Studio 2012 Express can be used to create a binary file. By default it's requires .NET Framework 4.0.
 After creating a library file you need to register it and add a required registry entries(see for included reg.cmd and .reg files).