In "avoidance_priority" property description, changed "important npcs characters" to "important non playable characters". The term "npc", means "non playable character", so to say "non playable characters characters" seems like an error.
Removes the parts that state that the navigation layers have anything to do with how a navigation map merges the navigation regions or navigation mesh polygons. Also corrects wrong statement about changing the navigation layers of a region as that change requires a server sync.
Adds info that in Godot 4.3 a NavigationObstacle3D can be baked to navmesh and used to discard unwanted navmesh inside its shape, e.g. navmesh that appears inside walls.
NavigationServer2D and 3D's `map_set_active()` method takes two arguments, the map RID and the boolean. The docs only contained the boolean, resulting in wrong code.
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Thaddeus Crews