chore: doxygen documentation for spawnpoint

spawn_point.hpp

@@ -6,6 +6,10 @@
 namespace gd = godot;
 
 namespace utils {
+/*! A location in the game world that the player can spawn at.
+ *
+ * Registers and de-registers itself with the GameRoot3D to enable/disable this spawnpoint.
+ */
 class SpawnPoint3D : public gd::Node3D {
     GDCLASS(SpawnPoint3D, gd::Node3D);
     static void _bind_methods();