Update url in security docs since 33bits.org no longer works

33bits.org is a pointer that is supposed to load 33bits.wordpress.com
but the mapping isn't there anymore so point directly to
33bits.wordpress.com.

Change-Id: Ia423858d5d59c8a0195fd0c69143faae64be55fc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1749186
Auto-Submit: Daniel Bratell <bratell@opera.com>
Reviewed-by: Chris Palmer <palmer@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#686347}

docs/security/faq.md

@@ -297,7 +297,8 @@ cookies](https://en.wikipedia.org/wiki/HTTP_ETag#Tracking_using_ETags), because
 defeating such fingerprinting is likely not practical without fundamental
 changes to how the Web works. One needs roughly 33 bits of non-correlated,
 distinguishing information to have a good chance of telling apart most user
-agents on the planet (see [Arvind Narayanan's site](https://33bits.org/about/)
+agents on the planet (see
+[Arvind Narayanan's site](https://33bits.wordpress.com/about/)
 and [Peter Eckersley's discussion of the information theory behind
 Panopticlick](https://www.eff.org/deeplinks/2010/01/primer-information-theory-and-privacy).)