Add Notes'n'Todos to Note-taking and Editors (#2533)

Co-authored-by: nodiscc <nodiscc@gmail.com>

README.md

@@ -156,6 +156,7 @@ _See also [Internet of Things (IoT)](#internet-of-things-iot)_
 - [MeTube](https://github.com/alexta69/metube) - Web GUI for youtube-dl, with playlist support. Allows downloading videos from dozens of websites. `AGPL-3.0` `Python/Nodejs/Docker`
 - [n8n](https://n8n.io/) - Free node based Workflow Automation Tool. Easily automate tasks across different services. ([Source Code](https://github.com/n8n-io/n8n)) `Apache-2.0` `Nodejs`
 - [nefarious](https://github.com/lardbit/nefarious) - Web application that automates downloading Movies and TV Shows. `GPL-3.0` `Python`
+- [OliveTin](https://github.com/jamesread/OliveTin) - OliveTin is a web interface for running Linux shell commands. `AGPL-3.0` `Go`
 - [Patrowl](https://github.com/Patrowl/PatrowlManager) - Open Source, Smart and Scalable Security Operations Orchestration Platform. `AGPL-3.0` `Python`
 - [Podgrab](https://github.com/akhilrex/podgrab) - Lightweight podcast manager and automatic podcast episode downloader. It will monitor podcasts for your and download them automatically whenever a new episode goes live. `GPL-3.0` `Docker/Go`
 - [pyLoad](https://pyload.net/) - Lightweight, customizable and remotely manageable downloader for 1-click-hosting sites like rapidshare.com or uploaded.to. ([Source Code](https://github.com/pyload/pyload)) `GPL-3.0` `Python`
@@ -488,6 +489,7 @@ _[Extensible Messaging and Presence Protocol](https://en.wikipedia.org/wiki/XMPP
 #### XMPP Servers
 
 - [ejabberd](https://www.ejabberd.im/) - XMPP instant messaging server. ([Source Code](https://github.com/processone/ejabberd)) `GPL-2.0` `Erlang`
+- [jackal](https://github.com/ortuman/jackal) - XMPP server with focus on stability, simple configuration and low resource consumption. `Apache-2.0` `Go`
 - [Kontalk](http://kontalk.org/) - Kontalk is an Open Source Messenger, similar to WhatsApp (app for android only currently), including end-to-end encryption, server is based on Tigase XMPP Server. ([Source Code](https://github.com/kontalk)) `GPL-3.0` `Java`
 - [Metronome IM](https://metronome.im/) - Fork of Prosody IM. ([Source Code](https://github.com/maranda/metronome)) `MIT` `Lua`
 - [MongooseIM](https://www.erlang-solutions.com/products/mongooseim.html) - Mobile messaging platform with a focus on performance and scalability. ([Source Code](https://github.com/esl/MongooseIM)) `GPL-2.0` `Erlang`
@@ -572,6 +574,7 @@ _CMS are a practical way to setup a website with many features. CMS often come w
 ### Recipe management
 
 - [Mealie](https://hay-kot.github.io/mealie/) - Material design inspired recipe manager with category and tag management, shopping-lists, meal-planner, and site customizations. Mealie is focused on simple user interactions to keep the whole family using the app. ([Source Code](https://github.com/hay-kot/mealie)) `MIT` `Python`
+- [kcal](https://github.com/kcal-app/kcal) - Track nutritional information about foods and recipes, set goals, and record a food journal to help along the way. Kcal is a personal system that focuses on direct control of inputs and a minimal, easy to use recipe presentation for preparing meals. ([Demo](http://demo.kcal.cooking/login)) `MPL-2.0` `PHP`
 - [OpenEats](https://github.com/open-eats/OpenEats) - Recipe management site that allows users to create, store, share and rate recipes, create grocery lists, and more. ([Demo](https://open-eats.github.io/)) `MIT` `Python`
 - [RecipeSage](https://github.com/julianpoy/recipesage) - A recipe keeper, meal plan organizer, and shopping list manager that can import recipes directly from any URL. ([Demo](https://recipesage.com)) `AGPL-3.0` `Node.JS`
 - [Tandoor Recipes](https://docs.tandoor.dev/) - Django application to manage, tag and search recipes using either built-in models or external storage providers hosting PDFs, Images or other files. ([Demo](https://app.tandoor.dev/), [Source Code](https://github.com/vabene1111/recipes/)) `MIT` `Python`
@@ -1159,6 +1162,7 @@ _See also [Wikis](#wikis)_
 - [minimalist-web-notepad](https://github.com/pereorga/minimalist-web-notepad) - Minimalist notepad.cc clone. ([Demo](https://notes.orga.cat/)) `Apache-2.0` `PHP`
 - [MiniNote](https://github.com/n1try/mininote) - Simple Markdown note-taking app with persistence. `MIT` `Nodejs`
 - [Notea](https://cinwell.com/notea/) - Self-hosted note-taking app stored on S3-compatible storage. ([Source Code](https://github.com/QingWei-Li/notea)) `MIT` `Nodejs`
+- [Notes'n'Todos](https://github.com/larspontoppidan/notesntodos) - Write notes and todos online in markdown with tag filtering and date sorting. ([Demo](https://lpss.dk/nnt-playground/)) `MIT` `Python`
 - [Oddmuse](https://oddmuse.org/) - A simple wiki engine written in Perl. No database required. ([Source Code](https://github.com/kensanata/oddmuse)) `GPL-3.0` `Perl`
 - [OpenNote](https://github.com/FoxUSA/OpenNote) - OpenNote was built to be an open web-based alternative to Microsoft OneNote (T) and EverNote. ([Demo](https://foxusa.github.io/OpenNote/OpenNote/#/folder)) `MIT` `HTML5`
 - [Overleaf](https://www.overleaf.com/) - Web-based collaborative LaTeX editor. ([Source Code](https://github.com/overleaf/overleaf)) `AGPL-3.0` `Ruby`
@@ -1311,6 +1315,7 @@ _See also [Monitoring](#monitoring)_
 ### Booking and Scheduling
 
 - [Alf.io](https://alf.io/) - The open source ticket reservation system. ([Demo](https://demo.alf.io/authentication), [Source Code](https://github.com/alfio-event/alf.io)) `GPL-3.0` `Java`
+- [Calendso](https://calendso.com/) - The open-source online appointment scheduling system. ([Demo](https://app.calendso.com/bailey), [Source Code](https://github.com/calendso/calendso)) `MIT` `Nodejs`
 - [Easy!Appointments](http://easyappointments.org/) - A highly customizable web application that allows your customers to book appointments with you via the web. ([Demo](http://easyappointments.org/demo/), [Source Code](https://github.com/alextselegidis/easyappointments)) `GPL-3.0` `PHP`
 
 ## Proxy
@@ -1560,6 +1565,7 @@ _Before hosting one, please see [shortcomings](https://en.wikipedia.org/wiki/URL
 
 - [gShort](https://github.com/someone-stole-my-name/gShort) - Privacy-friendly self-hosted URL shortener. ([Demo](http://gshort.christiansegundo.com/)) `GPL-3.0` `Go`
 - [Kutt](https://kutt.it) - A modern URL shortener with support for custom domains. ([Source Code](https://github.com/thedevs-network/kutt)) `MIT` `Nodejs`
+- [Link](https://fsh.ee) - A minimal, SQLite-backed URL shortener. ([Demo](https://demo.fsh.ee), [Source Code](https://git.fsh.ee/i/link)) `GPL-3.0` `Go`
 - [Link-shortener-bot](https://github.com/tommyku/link-shortener-front-end) `⚠` - URL shortener using a Telegram Bot. ([Demo](http://t.me/GiveMeShortLinkBot)) `MIT` `Ruby`
 - [liteshort](https://github.com/132ikl/liteshort) - User-friendly, actually lightweight, and configurable URL shortener. ([Demo](https://ls.ikl.sh)) `MIT` `Python`
 - [Lstu](https://github.com/ldidry/lstu) - _Let's SHorten That Url_ - Lightweight URL shortener. `WTFPL` `Perl`