[WCM] [SecurityBundle] Document multiple IP matching in rules

[danfinnie]

Q	A
Doc fix?	No
New docs?	Yes, for pull request symfony/symfony#7251
Applies to	2.3 (I think, this pull request and the code pull request are against master)
Fixed tickets	See above

This is the documentation for the pull request for multiple IP address matching in the request matcher against symfony.

I'm not sure exactly what Doc fix vs. new docs means but I basically just updated the example in the book to have 1 example with multiple IPs and added a .. versionadded notice. I wasn't sure if the changelog should be updated as well -- I couldn't tell if it was the changelog for the symfony code or for the documentation.

[wouterj]

Officially, you should answer yes to New Docs? and add symfony/symfony#7251 in their. But you don't have to change it this time, I just say it if you are going to contribute more in the future.

[danfinnie]

@wouterj I modified the original comment, might as well try to get it right the first time :). How's the updated version?

[wouterj]

👍

[weaverryan]

Hey Daniel!

Awesome PR and an easy merge for me!

Thanks!