Hasan

> Great! But is it necessary to use `?` `?` means the variable is nullable and should be initialized but if you not use `?` char after type, you should...

> > `?` means the variable is nullable and should be initialized but if you not use `?` char after type, you should use an initializer expression : > >...

Thanks

Persian is a RTL language, does dlang tour's core supports rtl langauges? and how is a translation depolyed to [tour.dlang.org](https://tour.dlang.org)?