Broken Link on Security Page

[anik4e]

Page -
​https://wordpress.org/about/security/

Broken Link on "Drupal’s security white paper"

Screenshot-
​http://prntscr.com/qnuojh

[Otto42]

Seems like the new proper link is ​https://www.drupal.org/files/drupal-security-whitepaper-1-3_0.pdf

[Otto42]

Also, changes should be reported for the whitepaper here: ​https://github.com/WordPress/Security-White-Paper

[dufresnesteven]

A patch for patch sakes. (Updating the URL)

[coffee2code]

In 9578:

Main theme: Update link to Drupal Security Whitepaper.

Props Otto42, dufresnesteven, anik4e.
Fixes #4964.