Added Thumbor to Photo and Video Galleries (#3126)

README.md

@@ -1562,6 +1562,7 @@ _Related: [Monitoring](#monitoring)_
 - [Piwigo](https://piwigo.org/) - Photo gallery software for the web, built by an active community of users and developers. ([Source Code](https://github.com/Piwigo/Piwigo)) `GPL-2.0` `PHP`
 - [Quru Image Server](https://quruimageserver.com/) - High performance dynamically resizing image server offering directory based access control cropping, rotation, color management and other tools. ([Demo](https://quruimageserver.com), [Source Code](https://github.com/quru/qis)) `AGPL-3.0` `Python`
 - [sigal](https://github.com/saimn/sigal) - Yet another simple static gallery generator. `MIT` `Python`
+- [Thumbor](http://thumbor.org/) - A smart imaging service and enables on-demand cropping, resizing, applying filters and optimizing images. ([Source Code](https://github.com/thumbor/thumbor)) `MIT` `Python/Docker`
 - [UberGallery](https://www.ubergallery.net) - UberGallery is an easy to use, simple to manage, web photo gallery. UberGallery does not require a database and supports JPEG, GIF and PNG file types. Simply upload your images and UberGallery will automatically generate thumbnails and output HTML. ([Source Code](https://github.com/UberGallery/UberGallery)) `MIT` `PHP`
 - [Zenphoto](https://www.zenphoto.org/) - Open-source gallery and CMS project. ([Source Code](https://github.com/zenphoto/zenphoto)) `GPL-2.0` `PHP`