longnha on "[Plugin: WordPress SEO by Yoast] Content after 'taxonomy-description" class"

WordPress version: 3.5.1
WordPress SEO version: 1.3.4.4

Hello,

I want to executes/add a code immediately after 'taxonomy-description" class (in Tag/category archive).

I'm using Genesis theme and there have Genesis - Simple Hooks plugin but there have no hook relate with class 'taxonomy-description"

Can someone here experience with this and kindly show me the way?

Thank you.

http://wordpress.org/extend/plugins/wordpress-seo/