Removed old file.

called: como-substituir-uma-string-em-um-arquivo-com-perl.tt
This name was recently changed for a batter comprehension.
Merging from main repository.
Updatind perl-tutorial.

Added/corrected some missing links and updated full chapter list.
Makes easier to edit as the article translations goes on.
merge from aramis
Merge remote-tracking branch 'ko_gypark/main' into main
(Korean) complate translation

	new file:   sites/ko/pages/boolean-values-in-perl.tt
(Korean) update perl-tutorial.tt
(Korean) links to new translated page

	modified:   sites/ko/pages/using-a-queue-in-perl.tt