diff --git a/readme.md b/readme.md
index 20e5ecc..b0e0d8a 100644
--- a/readme.md
+++ b/readme.md
@@ -4,6 +4,12 @@ by https://www.reddit.com/user/Stephen304
 
 https://www.reddit.com/r/DataHoarder/comments/858ny5/my_youtubedl_config_downloading_entire_channels/
 
+# Usage
+
+Edit channel urls in `youtube-dl-channels.txt`.
+
+Empty file `youtube-dl-archive.txt` is used to store downloaded ids.
+
 ## Linux
 
     chmod +x download_archive.sh