chore: rename roles to reflect upstream naming scheme

README.md

@@ -7,12 +7,12 @@ and managing nextcloud installations
 
 ## Roles
 
-- [`roles/nextcloud`](roles/nextcloud/README.md): For deploying
+- [`roles/server`](roles/server/README.md): For deploying
   and configuring a bare nextcloud instance in a docker container.
   Supports both the `-apache` (default) and `-fpm` variants.
-- [`roles/nextcloud-apps`](roles/nextcloud-apps/README.md):
+- [`roles/apps`](roles/apps/README.md):
   For managing nextcloud apps in an already installed nextcloud
-  instance. Can install, remove, enable/disable and update apps.
+  server instance. Can install, remove, enable/disable and update apps.
 
 ## License