feat: Added warning tag for proprietery software

README.md

@@ -1019,7 +1019,7 @@ Multiplayer game servers and [browser games](https://en.wikipedia.org/wiki/Brows
 - [QuakeJS](https://github.com/begleysm/quakejs) - QuakeJS is a port of ioquake3 to Javascript that can be played in a browser. `MIT` `Nodejs`
 - [Quizmaster](https://github.com/nymanjens/quizmaster) - A web-app for conducting a quiz, including a page for players to enter their answers. `Apache-2.0` `Scala`
 - [Red Eclipse 2](https://redeclipse.net) - A FOSS Arena First-Person Shooter Similar to Unreal Tournament. ([Source Code](https://github.com/redeclipse/base)) `Zlib/MIT/CC-BY-SA-4.0` `C/C++`
-- [SecDim Play](https://play.secdim.com) - A Secure Programming Gaming platform that teaches you how to code defensively and protect your app against vulnerabilities. `Python` `Java` `JavaScript` `Go` `AWS` 
+- [SecDim Play](https://play.secdim.com) `⚠` - A Secure Programming Gaming platform that teaches you how to code defensively and protect your app against vulnerabilities. `Python` `Java` `JavaScript` `Go` `AWS` 
 - [SourceBans++](https://sbpp.dev/) - Admin, ban, and communication management system for games running on the Source engine. ([Source Code](https://github.com/sbpp/sourcebans-pp)) `CC-BY-SA-4.0` `PHP`
 - [Teeworlds](https://www.teeworlds.com) - Open source 2D retro multiplayer shooter. ([Source Code](https://github.com/teeworlds/teeworlds)) `Zlib` `C++`
 - [The Battle for Wesnoth](https://github.com/wesnoth/wesnoth) - The Battle for Wesnoth is an Open Source, turn-based tactical strategy game with a high fantasy theme, featuring both singleplayer and online/hotseat multiplayer combat. `GPL-2.0` `C++`
@@ -1145,7 +1145,7 @@ Tools and software to help with education and learning.
 - [OpenOLAT](https://www.openolat.com/?lang=en) - OpenOLAT is a web-based learning management system for teaching, education, assessment and communication. ([Demo](https://learn.olat.com), [Source Code](https://github.com/OpenOLAT/OpenOLAT)) `Apache-2.0` `Java`
 - [RELATE](https://documen.tician.de/relate/) - RELATE is a web-based courseware package, includes features such as: flexible rules, statistics, multi-course support, class calendar. ([Source Code](https://github.com/inducer/relate)) `MIT` `Python`
 - [RosarioSIS](https://www.rosariosis.org/) - RosarioSIS, free Student Information System for school management. ([Demo](https://www.rosariosis.org/demo/), [Source Code](https://gitlab.com/francoisjacquet/rosariosis/)) `GPL-2.0` `PHP`
-- [SecDim Learn](https://learn.secdim.com) - A Secure Programming learning resource, a good source for CWEs with real world example of security vulnerabilities and how to fix them `Python` `Java` `JavaScript` `Go` `AWS` 
+- [SecDim Learn](https://learn.secdim.com) `⚠` - A Secure Programming learning resource, a good source for CWEs with real world example of security vulnerabilities and how to fix them `Python` `Java` `JavaScript` `Go` `AWS` 
 - [Vocascan](https://vocascan.com/) - A highly configurable vocabulary trainer. ([Source Code](https://github.com/vocascan/vocascan-server), [Clients](https://github.com/vocascan/vocascan-desktop)) `Apache-2.0` `Nodejs`
 
 
@@ -1342,7 +1342,7 @@ Software that does not fit in another section.
 - [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`
-- [SecDim](https://secdim.com) - An online secure programming learning platform, with a focus on securing your app against security vulnerabilities. `Python` `Java` `JavaScript` `Go` `AWS` 
+- [SecDim](https://secdim.com) `⚠` - An online secure programming learning platform, with a focus on securing your app against security vulnerabilities. `Python` `Java` `JavaScript` `Go` `AWS` 
 - [string.is](https://string.is/) - An open-source, privacy-friendly online string toolkit for developers. ([Source Code](https://github.com/recurser/string-is)) `AGPL-3.0` `Nodejs`
 - [Teleport](https://goteleport.com/) - Certificate authority and access plane for SSH, Kubernetes, web applications, and databases. ([Source Code](https://github.com/gravitational/teleport)) `Apache-2.0` `Go`
 - [TeslaMate](https://github.com/adriankumpf/teslamate) - A powerful data logger for Tesla vehicles. `MIT` `Elixir`