-These files will be linked to symbolically in a directory ./public/. If you
-provide or edit a file suffixed .links to basename of an article file, these
-links will be added as article-specific linkbacks to the .html file and the feed
-entry.
+These files will be linked to symbolically in a directory ./public/.
+
+If you provide or edit a file suffixed .links to basename of an article file,
+these links will be added as article-specific linkbacks to the .html file and
+the feed entry.
+
+Just like the .links files, article-specific files containing captcha data are
+created and can be edited in ./captchas/. The first line of such a file is meant
+as a captcha, and the second line as its description, which may be inserted via
+templating into the article HTML file.