Add Boxy SVG library to third-party extensions section

README.md

@@ -155,6 +155,7 @@ echo file_get_contents('path/to/package/icons/simpleicons.svg');
 | [Angular module](https://github.com/avmaisak/ngx-simple-icons) <img src="https://cdn.simpleicons.org/angular/000/fff" alt="Angular" align=left width=24 height=24> | [@avmaisak](https://github.com/avmaisak) | ![](https://img.shields.io/github/license/avmaisak/ngx-simple-icons) | [![v6.18.0](https://img.shields.io/static/v1?label=version&message=v6.18.0&logo=simpleicons&color=red)](https://github.com/simple-icons/simple-icons/tree/6.18.0) |
 | [Blazor Nuget package](https://github.com/TimeWarpEngineering/timewarp-simple-icons) <img src="https://cdn.simpleicons.org/blazor/000/fff" alt="Blazor" align=left width=24 height=24> | [@TimeWarpEngineering](https://github.com/TimeWarpEngineering)  | ![](https://img.shields.io/github/license/TimeWarpEngineering/timewarp-simple-icons) | ![](https://img.shields.io/badge/dynamic/xml?url=https%3A%2F%2Fraw.githubusercontent.com%2FTimeWarpEngineering%2Ftimewarp-simple-icons%2Fmain%2Fsource%2Ftimewarp-simple-icons%2Ftimewarp-simple-icons.csproj&query=%2FProject%2FPropertyGroup%2FVersion&logo=simpleicons&label=version) |
 | [Blender add-on](https://github.com/mondeja/simple-icons-blender) <img src="https://cdn.simpleicons.org/blender/000/fff" alt="Blender" align=left width=24 height=24> | [@mondeja](https://github.com/mondeja) | ![](https://img.shields.io/github/license/mondeja/simple-icons-blender) | ![](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fraw.githubusercontent.com%2Fmondeja%2Fsimple-icons-blender%2Fdevelop%2Fpackage.json&query=%24..%5B'simple-icons'%5D&logo=simpleicons&label=version) |
+| [Boxy SVG library](https://boxy-svg.com/ideas/298/simple-icons-library-provider) <img src="https://cdn.simpleicons.org/boxysvg/000/fff" alt="Boxy SVG" align=left width=24 height=24> | [@Jarek](https://boxy-svg.com/profiles/0000000000/jarek) | | |
 | [Drawio library](https://github.com/mondeja/simple-icons-drawio) <img src="https://cdn.simpleicons.org/diagramsdotnet/000/fff" alt="Drawio" align=left width=24 height=24> | [@mondeja](https://github.com/mondeja) | ![](https://img.shields.io/github/license/mondeja/simple-icons-drawio) | ![](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fraw.githubusercontent.com%2Fmondeja%2Fsimple-icons-drawio%2Fdevelop%2Fpackage.json&query=%24..%5B'simple-icons'%5D&logo=simpleicons&label=version) |
 | [Drupal module](https://www.drupal.org/project/simple_icons) <img src="https://cdn.simpleicons.org/drupal/000/fff" alt="Drupal" align=left width=24 height=24> | [Phil Wolstenholme](https://www.drupal.org/u/phil-wolstenholme) | ![](https://img.shields.io/badge/license-GPL_v2-blue.svg) | ![](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fgit.drupalcode.org%2Fproject%2Fsimple_icons%2F-%2Fraw%2F8.x-1.x%2Fpackage-lock.json%3Fref_type%3Dheads&query=%24..%5B'simple-icons'%5D.version&logo=simpleicons&label=version) |
 | [Figma plugin](https://www.figma.com/community/plugin/1149614463603005908/Simple-Icons) <img src="https://cdn.simpleicons.org/figma/000/fff" alt="Figma" align=left width=24 height=24> | [@LitoMore](https://github.com/LitoMore) | ![](https://img.shields.io/github/license/litomore/simple-icons-figma) | ![](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fraw.githubusercontent.com%2Fsimple-icons%2Fsimple-icons%2Fmaster%2Fpackage.json&query=%24.version&logo=simpleicons&label=version)  |