Mention rules for using Godot classes in the readme
Mention rules for using Godot classes in the readme

GodotNativeTools/cpp_bindings,godotengine/godot-cpp,GodotNativeTools/godot-cpp,GodotNativeTools/godot-cpp,godotengine/godot-cpp,GodotNativeTools/cpp_bindings,godotengine/godot-cpp,godotengine/godot-cpp,GodotNativeTools/godot-cpp