doc: add config lines for dokku

README.md

@@ -18,3 +18,13 @@
    * push image to local registry
 4. 
 
+ssh dokku@buddha-apps.boldcode.io app-json:set cloud appjson-path /app/app.json #  glenux/service-nextcloud:latest
+
+Run after install
+
+    config:app:set --value '30' files_lock lock_timeout
+
+Add this in crontab
+
+    dokku enter cloud web su -l -s /bin/bash - www-data -c "cd html && php -dmemory_limit=-1 ./occ app:update --all"
+