Update README.md

Author: lesichkovm

README.md

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 # Laravel Advanced Route
-An advanced route for Laravel 5.3, 5.4, 5.5, 5.6, 5.8, 6.0, 7.0 to support controllers
+An advanced route for Laravel 5.3, 5.4, 5.5, 5.6, 5.8, 6.0, 7.0, 8.0 to support controllers
 
 ## Background ##
 In Laravel 5.3 the advanced functionality Route::controller was removed.