diff --git a/nextcloud/README.md b/nextcloud/README.md
index 054c80d..e0d5116 100644
--- a/nextcloud/README.md
+++ b/nextcloud/README.md
@@ -1,8 +1,10 @@
-There is also somewhere a step to set up an alias for `occ` that ca be used outside the container to directly execute occ cli commands inside the container.
+There is also somewhere a step to set up an alias for `occ` that can be used outside the container to directly execute occ cli commands inside the container.
 
 Set default_phone_region like this:
 occ config:syste:set default_phone_region --value="DE"
 
 Check if you have to alter this line in the _collabora/loolwsd.xml_ file:
 
-`<host desc="Regex pattern of hostname to allow or deny." allow="true">nextcloud\\.sporada\\.eu</host>`
\ No newline at end of file
+`<host desc="Regex pattern of hostname to allow or deny." allow="true">nextcloud\\.sporada\\.eu</host>`
+
+Look at the documentation for server security and server tuning: https://docs.nextcloud.com/server/21/admin_manual/installation/index.html#
\ No newline at end of file