chore(readme): add @pedrro as contributor

Author: filipedeschamps

README.md

@@ -133,6 +133,8 @@ cep('123456789123456789')
 
 | [<img src="https://avatars1.githubusercontent.com/u/8251208?v=3&s=115"><br><sub>@lucianopf</sub>](https://github.com/lucianopf) | [<img src="https://avatars1.githubusercontent.com/u/7863230?v=3&s=115"><br><sub>@MarcoWorms</sub>](https://github.com/MarcoWorms) | [<img src="https://avatars1.githubusercontent.com/u/551228?v=3&s=115"><br><sub>@caio-ribeiro-pereira</sub>](https://github.com/caio-ribeiro-pereira) | [<img src="https://avatars1.githubusercontent.com/u/1225447?v=3&s=115"><br><sub>@chrisbenseler</sub>](https://github.com/chrisbenseler) | [<img src="https://avatars0.githubusercontent.com/u/3428149?v=3&s=115"><br><sub>@luanmuniz</sub>](https://github.com/luanmuniz) | [<img src="https://avatars3.githubusercontent.com/u/3094496?v=3&s=115"><br><sub>@AlbertoTrindade</sub>](https://github.com/AlbertoTrindade) |
 |:-:|:-:|:-:|:-:|:-:|:-:|
+| [<img src="https://avatars1.githubusercontent.com/u/4137355?v=3&s=115"><br><sub>@pedrro</sub>](https://github.com/pedrro) |
+
 
 ## Autor