Fix docs for ST_EnvelopeAsPts method.
Returns array(Geometry)
@@ -123,7 +123,7 @@ Operations
Returns the bounding rectangular polygon of a geometry.
-.. function:: ST_EnvelopeAsPts(Geometry) -> Geometry
+.. function:: ST_EnvelopeAsPts(Geometry) -> array(Geometry)
Returns an array of two points: the lower left and upper right corners of the bounding
rectangular polygon of a geometry. Returns null if input geometry is empty.
