Docs: Add mention to Object constructors in scripting languages

Fixes godotengine/godot-docs#1968.

doc/classes/Object.xml

@@ -4,7 +4,8 @@
 		Base class for all non built-in types.
 	</brief_description>
 	<description>
-		Base class for all non built-in types. Everything not a built-in type starts the inheritance chain from this class.
+		Base class for all non built-in types. Everything which is not a built-in type starts the inheritance chain from this class.
+		Objects can be constructed from scripting languages, using `Object.new()` in GDScript, `new Object` in C#, or the "Construct Object" node in VisualScript.
 		Objects do not manage memory, if inheriting from one the object will most likely have to be deleted manually (call the [method free] function from the script or delete from C++).
 		Some derivatives add memory management, such as [Reference] (which keeps a reference count and deletes itself automatically when no longer referenced) and [Node], which deletes the children tree when deleted.
 		Objects export properties, which are mainly useful for storage and editing, but not really so much in programming. Properties are exported in [method _get_property_list] and handled in [method _get] and [method _set]. However, scripting languages and C++ have simpler means to export them.