refer to correct image for my CI

README.md

@@ -2,7 +2,7 @@
 
 Works, as long as there is access to `docker` CLI.
 
-In my workflows, it is being run in the `alpine` linux with `git`, `bash` and `docker-cli` packages installed (see [actions/alpine](https://git.dzuchun.ing/actions/alpine)). Official `docker:cli` image should work too.
+In my workflows, it is being run in the `alpine` linux with `git`, `bash` and `docker-cli` packages installed (see [actions/docker](https://git.dzuchun.ing/actions/docker)). Official `docker:cli` image should work too.
 
 ## License
 

main.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+set -eu -o pipefail
 
 REGISTRY_URL=$(printenv INPUT_REGISTRY-URL)
 USER=$(printenv INPUT_REGISTRY-USER)
@@ -22,7 +23,7 @@ echo "Building the image, tag=$IMAGE_TAG"
 docker build --compress --tag $IMAGE_TAG $CONTEXT
 
 # log in the registry
-printenv $TOKEN | docker login -u $USER --password-stdin $REGISTRY_URL
+echo $TOKEN | docker login -u $USER --password-stdin $REGISTRY_URL
 
 # push the image
 docker push $IMAGE_TAG