link to rakudo-specific vars documented elsewhere

Author: coke

doc/Programs/00-running.pod6

@@ -76,6 +76,8 @@ The default if this is omitted is C<profile-I<[timestamp]>.html>.
 Rakudo's behavior can be tweaked by a (growing) number of environment variables; this section
 attempts to document all those currently in use.
 
+Other variables are listed in Rakudo's github wiki: L<https://github.com/rakudo/rakudo/wiki/dev-env-vars>.
+
 =head2 Module Loading
 
 =item C<RAKUDOLIB>, C<PERL6LIB> (I<Str>; C<src/core/Inc.pm>)