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

@@ -10,13 +10,13 @@ The engine is used by several commercial game studios and computer-science cours
 
 ![jME3 Games Mashup](https://i.imgur.com/nF8WOW6.jpg)
 
- - [jME powered games on IndieDB](http://www.indiedb.com/engines/jmonkeyengine/games)
+ - [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](http://mythruna.com/)
+ - [Mythruna](https://mythruna.com/)
  - [PirateHell (on Steam)](https://store.steampowered.com/app/321080/Pirate_Hell/)
- - [3089 (on Steam)](http://store.steampowered.com/app/263360/)
- - [3079 (on Steam)](http://store.steampowered.com/app/259620/)
+ - [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/)
@@ -33,12 +33,13 @@ The engine is used by several commercial game studios and computer-science cours
  - [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](http://hub.jmonkeyengine.org/) to participate in our community,
+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.