added more explanation of using the url format for linking to new reques...

This is the same as the previous request back with hyperlinks written with the Rails link_to helper.

Unfortunately I have been unable to test the links, because I am away from a machine on which I can do this for the next month. I do want to link to this page in an upcoming article and wanted to add this expanded explanation of the link to new form method. I'd appreciate if you could have a close look at the rails link to make sure they are correct and if they are not, make the simple update on your end.

Thanks as always :)