diff --git a/README.md b/README.md
index 6b36216..365e402 100644
--- a/README.md
+++ b/README.md
@@ -19,8 +19,11 @@ services:
       - ./www:/data/www
       - ./ssh:/ssh # add authorized_keys file here
       - ./extra_nginx.conf:/etc/nginx/custom.d/extra.conf # optional
+      - ./htpasswd:/app/htpasswd # optional, for webdav auth
     environment:
+      WEBDAV_PORT: 8080 # default: 8080
       PHP: php84 # none (default), php82, php83, php84
+      POSTSIZE: 256M # default: 256M
       PUID: 1000 # default: 1000
       PGID: 1000 # default: 1000
       TZ: Etc/UTC  # default: Etc/UTC