dw_docs | FAQ/site copy suggestions

I realized it's been a while since there's been a "suggest improvements to the FAQ and site copy" entry. This is that entry.

The list of paid account features (http://www.dreamwidth.org/support/faqbrowse?faqid=4) doesn't include the ability to view thumbnails of your icons when posting.(http://endersgame.net/~cheyan/screenshots/icondropdown.png - screenshot made when I was trying to explain to someone how to find that feature, before I knew it was a paid feature)