[5.9] Minor grammar fix in readme.md (#5010)

* Fix grammar ('Boost *your* skills')

* Update readme.md

readme.md

@@ -25,7 +25,7 @@ Laravel is accessible, powerful, and provides tools required for large, robust a
 
 Laravel has the most extensive and thorough [documentation](https://laravel.com/docs) and video tutorial library of all modern web application frameworks, making it a breeze to get started with the framework.
 
-If you don't feel like reading, [Laracasts](https://laracasts.com) can help. Laracasts contains over 1400 video tutorials on a range of topics including Laravel, modern PHP, unit testing, and JavaScript. Boost you and your team's skills by digging into our comprehensive video library.
+If you don't feel like reading, [Laracasts](https://laracasts.com) can help. Laracasts contains over 1400 video tutorials on a range of topics including Laravel, modern PHP, unit testing, and JavaScript. Boost your skills by digging into our comprehensive video library.
 
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