Update Docs

Author: jspringe

docs/documentation/digging-deeper/win32-model.md

@@ -40,7 +40,7 @@ define this property and a class name cannot determine the WMI class name an exc
 Attributes will attempted to be casted to the given type if defined within this array. All definitions of
 `$attribute_casting` are merged from the models ancestors by default. This allows you to define `$attribute_casting` in
 both a parent and a child without risk of having the values overridden. In the case where both the child and parent
-class both define the same attribute to be casteds the child casting will be used.
+class both define the same attribute to be casted the child casting will be used.
 
 ```php
 Available castings