corrected cronjob format

content/fundamentals/webserver.md

@@ -5,7 +5,7 @@ Tags: server, router, introduction, lan, wan
 url: fundamentals-webserver-website.html
 save_as: fundamentals-webserver-website.html
 Summary: Installing a web server on your homebrew server
-Author: misschienaasappel
+Author: hbsc & friends
 Status: draft
 slug: 004
 
@@ -277,7 +277,7 @@ sudo crontab -e
 
 Add the following:
 ```bash
-5 55 0 * 5  /usr/bin/certbot renew
+55 5 * * 5  /usr/bin/certbot renew
 ```
 
 This means the certificates will be renewed every week on Friday at 05:55. You can of course edit these times according to your preferences!