June 2024 update to README.md (#2281)

* README.md:  add the "Star Colony: Beyond Horizons" to the game list

* README.md:  update web links to use HTTPS where possible

Author: stephengold

README.md

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+jMonkeyEngine
+=============
+
+[![Build Status](https://github.com/jMonkeyEngine/jmonkeyengine/workflows/Build%20jMonkeyEngine/badge.svg)](https://github.com/jMonkeyEngine/jmonkeyengine/actions)
+
+jMonkeyEngine is a 3-D game engine for adventurous Java developers. It’s open-source, cross-platform, and cutting-edge.
+v3.6.1 is the latest stable version of the engine.
+
+The engine is used by several commercial game studios and computer-science courses. Here's a taste:
+
+![jME3 Games Mashup](https://i.imgur.com/nF8WOW6.jpg)
+
+ - [jME powered games on IndieDB](https://www.indiedb.com/engines/jmonkeyengine/games)
+ - [Boardtastic 2](https://boardtastic-2.fileplanet.com/apk)
+ - [Attack of the Gelatinous Blob](https://attack-gelatinous-blob.softwareandgames.com/)
+ - [Mythruna](https://mythruna.com/)
+ - [PirateHell (on Steam)](https://store.steampowered.com/app/321080/Pirate_Hell/)
+ - [3089 (on Steam)](https://store.steampowered.com/app/263360/3089__Futuristic_Action_RPG/)
+ - [3079 (on Steam)](https://store.steampowered.com/app/259620/3079__Block_Action_RPG/)
+ - [Lightspeed Frontier (on Steam)](https://store.steampowered.com/app/548650/Lightspeed_Frontier/)
+ - [Skullstone](http://www.skullstonegame.com/)
+ - [Spoxel (on Steam)](https://store.steampowered.com/app/746880/Spoxel/)
+ - [Nine Circles of Hell (on Steam)](https://store.steampowered.com/app/1200600/Nine_Circles_of_Hell/)
+ - [Leap](https://gamejolt.com/games/leap/313308)
+ - [Jumping Jack Flag](http://timealias.bplaced.net/jack/)
+ - [PapaSpace Flight Simulation](https://www.papaspace.at/)
+ - [Cubic Nightmare (on Itch)](https://jaredbgreat.itch.io/cubic-nightmare)
+ - [Chatter Games](https://chatter-games.com)
+ - [Exotic Matter](https://exoticmatter.io)
+ - [Demon Lord (on Google Play)](https://play.google.com/store/apps/details?id=com.dreiInitiative.demonLord&pli=1)
+ - [Marvelous Marbles (on Steam)](https://store.steampowered.com/app/2244540/Marvelous_Marbles/)
+ - [Boxer (on Google Play)](https://play.google.com/store/apps/details?id=com.tharg.boxer)
+ - [Depthris (on Itch)](https://codewalker.itch.io/depthris)
+ - [Stranded (on Itch)](https://tgiant.itch.io/stranded)
+ - [The Afflicted Forests (Coming Soon to Steam)](https://www.indiedb.com/games/the-afflicted-forests)
+ - [Star Colony: Beyond Horizons (on Google Play)](https://play.google.com/store/apps/details?id=game.colony.ColonyBuilder)
+
+## Getting Started
+
+Go to https://github.com/jMonkeyEngine/sdk/releases to download the jMonkeyEngine SDK.
+Read [the wiki](https://jmonkeyengine.github.io/wiki) for the installation guide and tutorials.
+Join [the discussion forum](https://hub.jmonkeyengine.org/) to participate in our community,
+get your questions answered, and share your projects.
+
+Note: The master branch on GitHub is a development version of the engine and is NOT MEANT TO BE USED IN PRODUCTION.
+
+### Technology Stack
+
+ - windowed, multi-platform IDE derived from NetBeans
+ - libraries for GUI, networking, physics, SFX, terrain, importing assets, etc.
+ - platform-neutral core library for scene graph, animation, rendering, math, etc.
+ - LWJGL v2/v3 (to access GLFW, OpenAL, OpenGL, and OpenVR) or Android or iOS
+ - Java Virtual Machine (v8 or higher)
+
+### Documentation
+
+Did you miss it? Don't sweat it, [here it is again](https://jmonkeyengine.github.io/wiki).
+
+### Contributing
+
+Read our [contribution guide](https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/CONTRIBUTING.md).
+
+### License
+
+[New BSD (3-clause) License](https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/LICENSE.md)
+