Docs : some links are broken due to lack of prefix CodeIgniter4

[TatwiraT]

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name: Bug report
about: some link in documentation are miss-redirecting due to the absence of the prefix CodeIgniter4

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Describe the bug
link : (broken link)[https://codeigniter4.github.io/CodeIgniter4/concepts/security.html#id2]
anchor text : HTTP library

thanks

[bangbangda]

Link updated.