user*, group*, add*, group*: add more info links (#5738)

* user*, group*, add*, group*:add more info links

* user*, group*: remove section numbers from manned.org links

* adduser, deluser: remove en locale from info links

* Update pages.it/linux/adduser.md

Co-authored-by: Axel Navarro <navarroaxel@gmail.com>

* Update pages.it/linux/deluser.md

Co-authored-by: Axel Navarro <navarroaxel@gmail.com>

* Update pages.pt_BR/linux/adduser.md

Co-authored-by: Axel Navarro <navarroaxel@gmail.com>

* Update pages.zh/linux/adduser.md

Co-authored-by: Axel Navarro <navarroaxel@gmail.com>

* Update pages/linux/adduser.md

Co-authored-by: Axel Navarro <navarroaxel@gmail.com>

* Update pages/linux/deluser.md

Co-authored-by: Axel Navarro <navarroaxel@gmail.com>

* Update pages.ko/linux/deluser.md

Co-authored-by: Axel Navarro <navarroaxel@gmail.com>

Co-authored-by: Axel Navarro <navarroaxel@gmail.com>

pages.it/linux/adduser.md

@@ -1,6 +1,7 @@
 # adduser
 
 > Servizio per aggiungere utenti.
+> Maggiori informazioni: <https://manpages.debian.org/latest/adduser/adduser.html>.
 
 - Crea un nuovo utente con una home directory predefinita e richiede all'utente di impostare una password: