Replace some codex links with updated locations.

[dd32]

This is part of https://meta.trac.wordpress.org/ticket/4910

[dd32]

I've also updated the Market share percentages in the documents and translations to match current-day numbers. (35% market share, 62% of CMS)

[vlad-timotei]

To replicate https://wordpress.org/about/security/ the pdf that is linked in that page needs some changes to be made. Some have been addressed by this PR

Text:

• WordPress 4.1 🠊 4.7 at time of publication
• It currently powers more than 23% 🠊 41% of the top 10 million websites on the Internet.
• and it powers more than 23🠊 41% of the top 10 million websites
• giving it an estimated 60% 🠊 62% market share of all sites
• Security Team is made up of approximately 25🠊50 experts
• directly via the email address: security@wordpress.org 🠊 via the WordPress HackerOne
• (currently “Twenty Fifteen”) 🠊 (currently "Twenty Twenty-One")
• There are approximately 30,000+ plugins and 2,000+ themes 🠊 There are approximately 50,000+ plugins and 5,000+ themes

Footnotes:

• [1] http://w3techs.com/, as of March 2015 🠊 [1] https://w3techs.com/, as of December 2019
• [2] https://make.wordpress.org/core/handbook/how-the-release-cycle-works/ 🠊 [2] https://make.wordpress.org/core/handbook/about/release-cycle/
• [3] Andrew Nacin, dezvoltator șef WordPress, http://vip.wordpress.com/security 🠊 https://make.wordpress.org/core/handbook/about/release-cycle/version-numbering/
• [5] https://codex.wordpress.org/Security_FAQ 🠊 [5] https://hackerone.com/wordpress
• [11] https://codex.wordpress.org/Hardening_WordPress 🠊[11] https://wordpress.org/support/article/hardening-wordpress/
• [12] http://www.openwall.com/phpass/ 🠊 [12] https://www.openwall.com/phpass/
• [17] https://wordpress.org/plugins/about/guidelines/ 🠊 [17] https://wordpress.org/plugins/developers/
• [19] https://codex.wordpress.org/Theme_Review 🠊 [19] https://make.wordpress.org/themes/handbook/review/
• [22] http://automattic.com/security/ 🠊 [22] https://automattic.com/security/
• [24] https://codex.wordpress.org/Database_API 🠊 [24] https://developer.wordpress.org/apis/handbook/database/
• [26] https://codex.wordpress.org/Version_2.6 🠊 [26] https://wordpress.org/support/wordpress-version/version-2-6/
• [27] https://codex.wordpress.org/HTTP_API 🠊 [27] https://developer.wordpress.org/plugins/http-api/
• [28] https://codex.wordpress.org/Version_2.7 🠊[28] https://wordpress.org/support/wordpress-version/version-2-7/
• [29] https://codex.wordpress.org/Function_Reference/current_user_can 🠊 [29] https://developer.wordpress.org/reference/functions/current_user_can/

Note: the above PR has a typo: [11] hhttps://wordpress.org/support/article/hardening-wordpress/

Since these strings are currently part of the main theme (that contains updated information) I don't see why the pdf is not generated automatically and even better, use a localized version of strings to generate it.

[desrosj]

@dd32 or @vlad-timotei would you be able to refresh this PR and confirm it's accuracy for 2022?