Fix documentation typo (#3810)

See #3809

docs/en/admins/08_FeedUpdates.md

@@ -54,4 +54,4 @@ Type=simple
 ExecStart=/usr/bin/php /usr/share/FreshRSS/app/actualize_script.php
 ```
 
-Finally, you need to enable the timer with `systemctl enable freshrss.timer` and reload the systemd configuration with `systemctl daeamon-reload`.
+Finally, you need to enable the timer with `systemctl enable freshrss.timer` and reload the systemd configuration with `systemctl daemon-reload`.