Link in first edition refers back to first edition

[mine-cetinkaya-rundel]

The link in the first edition at http://adv-r.had.co.nz/, which is supposed to point to the second edition of the book, points back to the first edition. I believe it's supposed to point to https://adv-r.hadley.nz/ (but currently it points to http://adv-r.had.co.nz/Introduction.html).

[luciorq]

Got accros this today, it's a big issue for people that don't know exactly where to find the information.

[russHyde]

This appears to be fixed in the first-edition-update branch ( https://github.com/hadley/adv-r/tree/first-edition-update ) but the website for the first edition hasn't been updated.