resolved alt text bug for 2 images - please review

Hi all,

I have added alt text to 2 images resolving a bug: links to the relevant
commit and spec section are below, please review the alt text, and provide
better ones if you can, thanks!


bug: https://www.w3.org/Bugs/Public/show_bug.cgi?id=20919
commit:
https://github.com/w3c/html/commit/fc2bc428c6b78198fe6f9f9f1eaf450461c0b4ca
relevant HTML 5.1 section :
http://www.w3.org/html/wg/drafts/html/master/forms.html#the-multiple-attribute

with regards

SteveF <http://www.paciellogroup.com/resources/wat-ie-about.html>
--
HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>
<http://www.paciellogroup.com/resources/wat-ie-about.html>