diff --git a/README.md b/README.md
index 020b1f9..222b808 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,8 @@ by replacing spaces in the anime name with underscores
 * Add an anime - `Title` should be the same as in the feed content
 * `Local` is the starting episode number, e.g. `00` for brand new series, or `25` for e.g the second season of an anime
 that continues with the numbering, where the first season had 24 episodes. Left padded with zeros to at least two digits
-* Add the weekday the anime airs via the `Airing` element
+* Add the weekday the anime airs via the `Airing` element. Setting this to `Done` will check the feed URL content in
+reverse order, which is handy if a feed contains all episodes of a finished anime
 * Provide an `Episode-Regex` to parse the episode number from the title of an RSS entry. As this regex is used for all
 elements of a feed it should match all those. Use the `$SHOW$` placeholder in the regex for substitution with the
 actual anime name during feed parsing.