Sleep before busting

src/freedombone-app-ghost

@@ -209,7 +209,8 @@ function upgrade_ghost {
     cd /var/www/$GHOST_DOMAIN_NAME/htdocs
 
     npm i -g ghost-cli
-    /usr/local/bin/ghost update
+    /usr/local/bin/ghost update &
+    sleep 200
     ghost_bust
 
     ghost_replace_services