diff --git a/Dockerfile b/Dockerfile
index 332a237..1d7a298 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,4 +2,8 @@ FROM docker.io/library/python:3.11-alpine
 
 RUN apk --no-cache add sshpass openssh-client lftp; mkdir -p /opt/app
 ADD requirements.txt /opt/app/
+
+# ignore "Running pip as root" warning
+ENV PIP_ROOT_USER_ACTION=ignore
+
 RUN pip install -r /opt/app/requirements.txt && pip freeze
diff --git a/README.md b/README.md
index 33c1e35..02a5fd1 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,15 @@
-# deployment-helper
+# deployment-helper für Nikola based Websites
 
-Simple Helper-Image to Deploy Websites to remote sftp servers.
+
+## Python 3.11 and Nikola 8.x
+
+This image is based on the python:3.11-alpine image and includes additional
+Python-packages for building nikola-sites.
+
+## lftp for sftp-Uploads
+
+This image includes `lftp` to upload files to a sftp-server and use
+the sftp-password from LFTP_PASSWORD environment variable.
 
 ```bash
 lftp -e 'set sftp:auto-confirm yes; mirror -R ./<LOCAL_DIR>/ ./<REMOTE_DIR>/; bye' --env-password -u USER sftp://<TARGET_FQDN>