Simple, clean, working

Hi, thank you for the job! Works for me without breaking down the theme. Such plugins are very useful for educational and thematic sites, it’s really a must-have section.

I hope you’ll keep an eye on the plugin. Also, some additional features would be great, like: 1) a shortcode for a page, 2) a letter preceding the group of terms starting with this letter, and 3a) splitting the list of terms into more than one column (on a page with the shortcode) or 3b) positioning it in line (in the sidebar) in order not to make the lists (hence the sidebar or the page) toooo looooong.
All in all, a very good start!