Update README.

diff --git a/README.md b/README.md
index f16e442ec81aa1475f58fb2bbff1d5356c3e95ad..c1d9f4b6c751e3d3d92b7864830328fafab0043f 100644 (file)
--- a/README.md
+++ b/README.md
@@ -26,10 +26,16 @@ run ./add_dir.sh DIRECTORY.
 
 You can then enter the directory and run redo there. This will generate article
 .html files from all .md and .rst files, plus a ./index.html, and a ./feed.xml.
-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.
 
 Some metadata files will also be generated below ./metadata/: For each article,
 there will be generated a .automatic_metadata (to contain an article's UUID,