chmod usage

readme.md

@@ -2,4 +2,14 @@
 
 by https://www.reddit.com/user/Stephen304
 
-https://www.reddit.com/r/DataHoarder/comments/858ny5/my_youtubedl_config_downloading_entire_channels/
+https://www.reddit.com/r/DataHoarder/comments/858ny5/my_youtubedl_config_downloading_entire_channels/
+
+## Linux
+
+    chmod +x download_archive.sh
+
+Run using `./download_archive.sh`
+
+## Windows
+
+Run `download_archive.bat`