Add string.is to Miscellaneous (#2958) (#2958)

Co-authored-by: Yassine Doghri <doghri.yassine@gmail.com>

README.md

@@ -205,6 +205,7 @@ _See also: [WeblogMatrix](https://www.weblogmatrix.org/)_
 - [Bludit](https://www.bludit.com/) `⚠` - Simple application to build a site or blog in seconds. Bludit uses flat-files (text files in JSON format) to store posts and pages. ([Demo](https://demo.bludit.com/), [Source Code](https://github.com/bludit/bludit)) `MIT` `PHP`
 - [Cadmus](https://github.com/ldemafelix/cadmus) - Cadmus is an extremely lightweight, flat-file blogging platform powered by Markdown. `MIT` `PHP`
 - [Canvas](https://trycanvas.app/) - A Laravel publishing platform. ([Source Code](https://github.com/austintoddj/canvas)) `MIT` `PHP`
+- [Castopod](https://castopod.org) - A podcast management hosting platform that includes the latest podcast 2.0 standards, an automated Fediverse feed, analytics, an embeddable player, and more. [Source Code](https://code.castopod.org/adaures/castopod) `AGPL-3.0` `PHP`
 - [Chyrp Lite](https://chyrplite.net) - Extra-awesome, extra-lightweight blog engine. ([Source Code](https://github.com/xenocrat/chyrp-lite)) `BSD-3-Clause` `PHP`
 - [Dante Stories](https://dante-stories.herokuapp.com/) - Self hosted Medium platform built with Ruby on Rails. ([Source Code](https://github.com/michelson/dante-stories)) `MIT` `Ruby`
 - [Dotclear](https://dotclear.org/) - Take control over your blog. ([Source Code](https://hg.dotclear.org/dotclear)) `GPL-2.0` `PHP`
@@ -858,6 +859,7 @@ _Related: [Groupware](#groupware)_
 
 **[`^        back to top        ^`](#)**
 
+- [GarageHQ](https://garagehq.deuxfleurs.fr/) - An open-source geo-distributed storage service you can self-host to fulfill many needs - S3 compatible. ([Source Code](https://git.deuxfleurs.fr/Deuxfleurs/garage)) `AGPL-3.0` `Rust`
 - [Minio](https://minio.io/) - Minio is an open source object storage server compatible with Amazon S3 APIs. ([Source Code](https://github.com/minio/minio)) `Apache-2.0` `Go`
 - [SeaweedFS](https://github.com/chrislusf/seaweedfs) - SeaweedFS is an open source distributed file system supporting WebDAV, S3 API, FUSE mount, HDFS, etc, optimized for lots of small files, and easy to add capacity. `Apache-2.0` `Go`
 - [SFTPGo](https://github.com/drakkan/sftpgo) - Flexible, fully featured and highly configurable SFTP server with optional FTP/S and WebDAV support. `AGPL-3.0` `Go`
@@ -1244,6 +1246,7 @@ _See also: [List of streaming media systems - Wikipedia](https://en.wikipedia.or
 - [revealjs](https://revealjs.com) - Framework for easily creating beautiful presentations using HTML. ([Demo](https://revealjs.com/), [Source Code](https://github.com/hakimel/reveal.js)) `MIT` `Javascript`
 - [Revive Adserver](https://www.revive-adserver.com/) - World's most popular free, open source ad serving system. Formerly known as OpenX Adserver and phpAdsNew. ([Source Code](https://github.com/revive-adserver/revive-adserver)) `GPL-2.0-or-later` `PHP`
 - [SANE Network Scanning](http://sane-project.org/) - Allow remote clients to access image acquisition devices (scanners) available on the local host. ([Source Code](http://www.sane-project.org/cvs.html)) `GPL-2.0` `C`
+- [string.is](https://string.is/) - An open-source, privacy-friendly online string toolkit for developers. ([Demo](https://string.is/) [Source Code](https://github.com/recurser/string-is)) `AGPL-3.0` `Nodejs`
 - [TeslaMate](https://github.com/adriankumpf/teslamate) - A powerful data logger for Tesla vehicles. `MIT` `Elixir`
 - [Trello Burndown](https://github.com/mtricht/trello-burndown) `⚠` - Easy to use SCRUM burndown chart for Trello boards. `MIT` `Go/Docker`
 - [ViMbAdmin](https://www.vimbadmin.net/) - Provides a web based virtual mailbox administration system to allow mail administrators to easily manage domains, mailboxes and aliases. ([Demo](https://www.vimbadmin.net/demo/auth/login), [Source Code](https://github.com/opensolutions/ViMbAdmin)) `GPL-3.0` `PHP`
@@ -1311,6 +1314,7 @@ _Related: [Wikis](#wikis)_
 - [HedgeDoc](https://demo.hedgedoc.org/) - Realtime collaborative markdown notes on all platforms, formerly known as CodiMD and HackMD CE. ([Source Code](https://github.com/hedgedoc/hedgedoc)) `AGPL-3.0` `TypeScript`
 - [Joplin](https://joplinapp.org/) - Joplin is a note taking application with Markdown editor and encryption support for mobile and desktop platforms. Runs client-side and syncs through self hosted Nextcloud or similar. Consider it like open source alternative to Evernote. ([Source Code](https://github.com/laurent22/joplin)) `MIT` `Nodejs`
 - [Leanote](http://leanote.org/) - Leanote, Not Just A Notepad! Open source cloud notepad. ([Demo](https://leanote.com/note), [Source Code](https://github.com/leanote/leanote)) `GPL-2.0` `Go`
+- [Livebook](https://livebook.dev) - Realtime collaborative notebook app based on Markdown that supports running Elixir codesnippets, TeX and Mermaid Diagrams. Easily deployed using Docker or Elixir. ([Source Code](https://github.com/livebook-dev/livebook)) `Apache-2.0` `Elixir`
 - [Markdown Edit](https://github.com/georgeOsdDev/markdown-edit/) - Online markdown editor/viewer. `MIT` `HTML5`
 - [Meemo](https://meemo.minimal-space.de/) - Personal notes stream with Markdown support. ([Source Code](https://github.com/nebulade/meemo)) `MIT` `Nodejs`
 - [minimalist-web-notepad](https://github.com/pereorga/minimalist-web-notepad) - Minimalist notepad.cc clone. ([Demo](https://notes.orga.cat/)) `Apache-2.0` `PHP`
@@ -1447,6 +1451,7 @@ _Related: [Monitoring](#monitoring)_
 - [LibrePhotos](https://github.com/LibrePhotos/librephotos) - Self hosted wannabe Google Photos clone, with a slight focus on cool graphs. `MIT` `Python`
 - [Lychee](https://lycheeorg.github.io/) - Open source grid and album based photo-management-system. ([Source Code](https://github.com/LycheeOrg/Lychee)) `MIT` `PHP`
 - [Mediagoblin](https://mediagoblin.org) - Free software media publishing platform that anyone can run. You can think of it as a decentralized alternative to Flickr, YouTube, SoundCloud, etc. ([Source Code](https://savannah.gnu.org/projects/mediagoblin)) `AGPL-3.0` `Python`
+- [MediaHut](https://github.com/Fortyseven/MediaHut/) - A truly single-file, no-database, drop-in PHP media gallery. ([Demo](https://media.Network47.org/)) `MIT` `PHP`
 - [Mejiro](https://github.com/dmpop/mejiro) - An easy-to-use PHP web application for instant photo publishing. `GPL-3.0` `PHP`
 - [Photato](https://github.com/trebonius0/Photato) - Self-hosted photo gallery, accessible through a responsive WebUI. Directly uses and indexes a specific folder in the filesystem. `AGPL-3.0` `Java`
 - [Photo Stream](https://github.com/waschinski/photo-stream) - Minimalist self-hosted photo stream. ([Demo](https://floremotion.de/)) `MIT` `Ruby`