Merge pull request #79 from chrispaig3/patch-1

Add Expo CLI tool to productivity section

Author: wujunze

README.md

@@ -267,6 +267,7 @@ See also [A comparison of operating systems written in Rust](https://github.com/
 
 * [eureka](https://crates.io/crates/eureka) — A CLI tool to input and store your ideas without leaving the terminal
 * [BenSchZA/pier](https://github.com/BenSchZA/pier) — A central repository to manage (add, search metadata, etc.) all your one-liners, scripts, tools, and CLIs [<img src="https://api.travis-ci.com/BenSchZA/pier.svg?branch=master">](https://travis-ci.com/BenSchZA/pier)
+* [chrispaig3/expo](https://github.com/chripaig3/expo) - A Rusty CLI tool for managing the accessibility of GitHub repositories at scale.
 
 ### Security tools