Add Pastr to URL Shorteners (#3730)

README.md

@@ -2029,6 +2029,7 @@ Before hosting one, please see [shortcomings](https://en.wikipedia.org/wiki/URL_
 - [Kutt](https://kutt.it) - A modern URL shortener with support for custom domains. ([Source Code](https://github.com/thedevs-network/kutt)) `MIT` `Nodejs`
 - [liteshort](https://git.ikl.sh/132ikl/liteshort) - User-friendly, actually lightweight, and configurable URL shortener. `MIT` `Python`
 - [Lstu](https://github.com/ldidry/lstu) - Lightweight URL shortener. `WTFPL` `Perl`
+- [Pastr](https://github.com/hossainalhaidari/pastr) - Super-minimal URL shortener and paste tool that uses a flat-file storage and has no dependencies. ([Demo](https://alhai.de)) `MIT` `Go` 
 - [ReducePy](https://github.com/abdullahselek/ReducePy) - URL shortener service using Tornado and Redis runs on Docker and Kubernetes. `MIT` `Python`
 - [schort](https://github.com/sqozz/schort) - No login, no javascript, just short links. `CC0-1.0` `Python`
 - [Shlink](https://shlink.io) - URL shortener with REST API and command line interface. Includes official progressive web application and docker images. ([Source Code](https://github.com/shlinkio/shlink), [Clients](https://shlink.io/apps)) `MIT` `PHP`