diff --git a/README.md b/README.md
index 5960d91..5d4d749 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,8 @@ This is a [PESOS](https://indieweb.org/PESOS) style website maker.
 
 ## work in progress.
 * download and parse rss only on startup not on every index.html download
-* make sort_order types (random, chronological, default=as rss feed comes)
+* <s>make sort_order types</s>
+* sort_order options are: default(same order as rss), reverse, random, chronological, reverse-chronological.
 * <s>make limits to amount of entries.</s> done
 * make category filter.