Update README.md

Author: geekcom

README.md

@@ -1,6 +1,6 @@
 # LaraValidator Docs - Brasil
 
-_Validação de documentos do Brasil usando **Laravel 6/7**_
+_Validação de documentos do Brasil usando **Laravel 6/7/8**_
 
 [![Build Status](https://travis-ci.org/geekcom/validator-docs.svg?branch=master)](https://travis-ci.org/geekcom/validator-docs)
 [![Coverage Status](https://coveralls.io/repos/github/geekcom/validator-docs/badge.svg?branch=master)](https://coveralls.io/github/geekcom/validator-docs?branch=master)