chore: add the portuguese version of this project to readme.md

Author: nazarepiedady

README.md

@@ -40,6 +40,7 @@ Please see the [CONTRIBUTING.md] file for more details.
 * [French](https://github.com/Songbird0/FR_RBE)
 * [Russian](https://github.com/ruRust/rust-by-example)
 * [Vietnamese](https://github.com/EyesCrypto-Insights/rust-by-example-vn)
+* [Portuguese](https://github.com/nazarepiedady/rust-com-exemplos)
 
 ## License