add new line

Author: Pearl1594

blog/2025-06-10-cloudstack-4.19.3.0-4.20.1.0-release/index.md

@@ -71,4 +71,4 @@ https://download.cloudstack.org/el/8/
 https://download.cloudstack.org/el/9/
 https://download.cloudstack.org/suse/15
 https://download.cloudstack.org/ubuntu/dists/
-https://www.shapeblue.com/packages/
+https://www.shapeblue.com/packages/