track URL change

Author: coke

doc/Language/faq.rakudoc

@@ -139,7 +139,7 @@ by Andrew Shitov
 =item L<Raku Fundamentals|https://www.apress.com/gp/book/9781484261088>,
 by Moritz Lenz
 
-=item L<Perl 6 Deep Dive|https://www.packtpub.com/application-development/perl-6-deep-dive>, by Andrew Shitov
+=item L<Perl 6 Deep Dive|https://www.packtpub.com/en-us/product/perl-6-deep-dive-9781787123458>, by Andrew Shitov
 
 =item L<Think Perl 6: How to Think Like a Computer Scientist|https://greenteapress.com/wp/think-perl-6/>, by Laurent Rosenfeld.