Guide on setting up Godot C# project with Rider on Linux

**Your Godot version:**
4.2

**Issue description:**
I had to search over forums to figure out how to setup Rider on Linux with Godot C#. It does not cover how to create a solution without Microsoft Visual Studio (which is possible).

**URL to the documentation page (if already existing):**
PR:
https://github.com/godotengine/godot-docs/pull/9046