Add "Learn Go by Building Command-Line Interfaces"

Co-Authored-By: Oluwadamilare <[email protected]>

README.md

@@ -119,6 +119,7 @@ It's a great way to learn.
 * [**Go**: _Build a command line app with Go: lolcat_](https://flaviocopes.com/go-tutorial-lolcat/)
 * [**Go**: _Building a cli command with Go: cowsay_](https://flaviocopes.com/go-tutorial-cowsay/)
 * [**Go**: _Go CLI tutorial: fortune clone_](https://flaviocopes.com/go-tutorial-fortune/)
+* [**Go**: Learn Go by Building Command-Line Interfaces ](https://levelup.gitconnected.com/learn-go-by-building-command-line-interfaces-2b14a25f77e5)
 * [**Go**: _Visualize your local git contributions with Go_](https://flaviocopes.com/go-git-contributions/)
 * [**Nim**: _Writing a stow alternative to manage dotfiles_](https://xmonader.github.io/nimdays/day06_nistow.html)
 * [**Node.js**: _Create a CLI tool in Javascript_](https://citw.dev/tutorial/create-your-own-cli-tool)