15 RFR (XXS) 8250216: The README need not mention retrieving source code

[Iris Clark]

Hi, Mark.

> Bug: https://bugs.openjdk.java.net/browse/JDK-8250216
> 
> [ ... ]
> 
> Patch below.

Looks good.

I think it would be nice if you could reference the JDK Project page (ojn/projects/jdk), not just ojn.

Thanks,
Iris