Added 'ass' to 'Single-click/drag-n-drop upload'

README.md

@@ -772,6 +772,7 @@ _See https://github.com/awesome-foss/awesome-sysadmin#distributed-filesystems_
 
 #### Single-click/drag-n-drop upload
 
+- [ass](https://github.com/tycrek/ass) - The superior self-hosted ShareX server. For use with clients such as ShareX (Windows), Flameshot (Linux), & MagicCap (Linux, macOS). `ISC` `Nodejs`
 - [BoZoN](https://github.com/broncowdd/BoZoN) - Minimalist Drag and drop file sharing app. `AGPL-3.0` `PHP`
 - [Chibisafe](https://lolisafe.moe/) - Blazing fast file uploader and awesome bunker written in node. ([Source Code](https://github.com/weebdev/chibisafe)) `MIT` `Nodejs`
 - [Coquelicot](https://coquelicot.potager.org/) - Coquelicot is a “one-click” file sharing web application with a focus on protecting users’ privacy. ([Source Code](https://coquelicot.potager.org/dist/coquelicot-0.9.6.tar.gz)) `AGPL-3.0` `Ruby`