The easiest way is to go to https://github.com/rust-unofficial/awesome-rust/blob/master/README.md and click on the "pen" icon in the top right corner. Make the changes to the file and follow the instructions to create a pull request.
- if you want to add something, please open an PR and use the template `[XXX/YYY](https://github.com/XXX/YYY) [[YYY](https://crates.io/crates/YYY)] — DESCRIPTION [<img src="https://api.travis-ci.org/XXX/YYY.svg?branch=master">](https://travis-ci.org/XXX/YYY)`