diff --git a/.github/workflows/ci_docker.yml b/.github/workflows/ci_docker.yml
index af87459..3197cb5 100644
--- a/.github/workflows/ci_docker.yml
+++ b/.github/workflows/ci_docker.yml
@@ -40,17 +40,30 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GHCR_IO_TOKEN }}
 
-      - name: Build image and push to Docker Hub and GitHub Container Registry
+      - name: "no_qr_reader: Build image and push to Docker Hub and GitHub Container Registry"
         uses: docker/build-push-action@v2
         with:
           # relative path to the place where source code with Dockerfile is located
           context: .
+          file: Dockerfile_no_qr_reader
           # Note: tags has to be all lower-case
           tags: |
             scito/extract_otp_secret_keys:latest
             ghcr.io/scito/extract_otp_secret_keys:latest
           # build on feature branches, push only on master branch
-          push: ${{ github.ref == 'refs/heads/master' }}
+          # push: ${{ github.ref == 'refs/heads/master' }}
+
+      - name: "qr_reader: Build image and push to Docker Hub and GitHub Container Registry"
+        uses: docker/build-push-action@v2
+        with:
+          # relative path to the place where source code with Dockerfile is located
+          context: .
+          # Note: tags has to be all lower-case
+          tags: |
+            scito/extract_otp_secret_keys:latest
+            ghcr.io/scito/extract_otp_secret_keys:latest
+          # build on feature branches, push only on master branch
+          # push: ${{ github.ref == 'refs/heads/master' }}
 
       - name: Image digest
         run: echo ${{ steps.docker_build.outputs.digest }}
diff --git a/README.md b/README.md
index 55b5a54..9aadb52 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ cd extract_otp_secret_keys
 <pre>usage: extract_otp_secret_keys.py [-h] [--json FILE] [--csv FILE] [--keepass FILE] [--printqr] [--saveqr DIR] [--verbose | --quiet] infile [infile ...]
 
 positional arguments:
-  infile                   1) file or - for stdin with "otpauth-migration://..." URLs separated by newlines, lines starting with # are ignored; 2) image file containing a QR code or = for stdin for an image containing a QR code
+  infile                   1) file or - for stdin with "otpauth-migration://..." URLs separated by newlines, lines starting with # are ignored; or 2) image file containing a QR code or = for stdin for an image containing a QR code
 
 options:
   -h, --help               show this help message and exit
@@ -56,7 +56,13 @@ options:
   --printqr, -p            print QR code(s) as text to the terminal (requires qrcode module)
   --saveqr DIR, -s DIR     save QR code(s) as images to the given folder (requires qrcode module)
   --verbose, -v            verbose output
-  --quiet, -q              no stdout output, except output set by -</pre>
+  --quiet, -q              no stdout output, except output set by -
+
+examples:
+python extract_otp_secret_keys.py example_*.txt
+python extract_otp_secret_keys.py - < example_export.txt
+python extract_otp_secret_keys.py --csv - example_*.png | tail -n+2
+python extract_otp_secret_keys.py = < example_export.png</pre>
 
 ## Dependencies
 
@@ -319,6 +325,12 @@ docker run --rm -v "$(pwd)":/files:ro extract_otp_secret_keys_no_qr_reader examp
 docker run --rm -v "$(pwd)":/files:ro -i extract_otp_secret_keys_no_qr_reader - < example_export.txt
 docker build . -t extract_otp_secret_keys_no_qr_reader -f Dockerfile_no_qr_reader --pull && docker run --entrypoint /extract/run_pytest.sh --rm -v "$(pwd)":/files:ro extract_otp_secret_keys_no_qr_reader test_extract_otp_secret_keys_pytest.py -k "not qreader" -vvv --relaxed -s
 
+docker pull scit0/extract_otp_secret_keys
+docker pull scit0/extract_otp_secret_keys_no_qr_reader
+
+docker pull ghcr.io/scito/extract_otp_secret_keys
+docker pull ghcr.io/scito/extract_otp_secret_keys_no_qr_reader
+
 ## Tests
 
 ### PyTest