Add AstarGrid2D to 2D Navigation Overview?

[shak2]

This page:

https://docs.godotengine.org/en/stable/tutorials/navigation/navigation_introduction_2d.html

Does not contain a headline with detail of this important (new?) node:

https://docs.godotengine.org/en/stable/classes/class_astargrid2d.html

I am new to pathfinding, so maybe there are other new 2D and 3D navigation nodes that are missing in the 2D and 3D pathfinding/navigation docs pages.

Please check and update as this is important information for completeness of these pages.

[AThousandShips]

This should be discussed as an issue here