Update readme with new URL

Author: HielkeMaps

README.md

@@ -4,16 +4,16 @@ An open source continuation of Minecraft Note Block Studio with exciting new fea
 </p>
 
 ### Download
-You can download Open Note Block Studio [here](https://hielkeminecraft.github.io/OpenNoteBlockStudio/).
+You can download Open Note Block Studio [here](https://opennbs.org/).
 You can either download it as an `.exe` installer (recommended), or as a ZIP file.
 
 ### Issues
-To report issues, please head over to the [Issues](https://github.com/HielkeMinecraft/OpenNoteBlockStudio/issues) page.
+To report issues, please head over to the [Issues](https://github.com/OpenNBS/OpenNoteBlockStudio/issues) page.
 You can also join our [Discord server](https://discord.gg/w35BqQp) to get support and share your creations!
 
 ### Contributions
 This project is written in GameMaker Language (GML). You must have GameMaker Studio 2 in order to open the project and make changes.  
 For contributions, please open a pull request.
 
 ### Website
-For everything else, please visit the [website](https://hielkeminecraft.github.io/OpenNoteBlockStudio/).
+For everything else, please visit the [website](https://opennbs.org/).