Document meta-object revision 10

Amends cb43aaca11

Change-Id: I7bcf2b86aa29d00291f5d8ad44a89320b9eae2f5
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

src/corelib/kernel/qmetaobject_p.h

@@ -172,6 +172,7 @@ struct QMetaObjectPrivate
     // revision 7 is Qt 5.0 everything lower is not supported
     // revision 8 is Qt 5.12: It adds the enum name to QMetaEnum
     // revision 9 is Qt 6.0: It adds the metatype of properties and methods
+    // revision 10 is Qt 6.2: The metatype of the metaobject is stored in the metatypes array
     enum { OutputRevision = 10 }; // Used by moc, qmetaobjectbuilder and qdbus
     enum { IntsPerMethod = QMetaMethod::Data::Size };
     enum { IntsPerEnum = QMetaEnum::Data::Size };