diff --git a/README.md b/README.md
index 53ff27c..8856c99 100644
--- a/README.md
+++ b/README.md
@@ -40,4 +40,12 @@ Add the following to cron to automate Backup
 ```bash
 0 13 * * * sh /path/to/script/zip_folder_daily.sh
 ```
+</details> 
+
+<details> 
+<summary>Change the day count </summary>
+<br>
+
+edit the zip_folder_daily.sh in `/opt` and the change the line 
+
 </details> 
\ No newline at end of file