multiarch tweaks

Author: aireilly

README.md

@@ -2,35 +2,43 @@
 
 Dockerfile with tools to validate and build openshift-docs AsciiDoc files.
 
-## Push to quay.io
+## Build image and push to quay.io
 
 ```cmd
 podman login registry.redhat.io
 
 podman login quay.io/redhat-docs
 
-podman build -t openshift-docs-asciidoc:latest -f asciidoc.Dockerfile
+podman rmi quay.io/redhat-docs/openshift-docs-asciidoc:multiarch
 
-podman tag <commit_hash> quay.io/redhat-docs/openshift-docs-asciidoc
+podman rmi localhost/openshift-docs-asciidoc:multiarch
 
-podman push quay.io/redhat-docs/openshift-docs-asciidoc
-```
+podman build -t openshift-docs-asciidoc:latest --platform linux/amd64 -f asciidoc.Dockerfile
 
-The image is available from https://quay.io/repository/redhat-docs/openshift-docs-asciidoc?tab=tags&tag=latest
+podman tag <commit_hash> quay.io/redhat-docs/openshift-docs-asciidoc:latest
 
-To use it, `podman pull quay.io/redhat-docs/openshift-docs-asciidoc`.
+podman push quay.io/redhat-docs/openshift-docs-asciidoc:latest
+```
 
-# multiarch build
+## Multiarch build
 
 ```cmd
-podman buildx build --platform linux/amd64,linux/arm64 --tag quay.io/redhat-docs/openshift-docs-asciidoc:multiarch -f asciidoc.Dockerfile
+podman rmi quay.io/redhat-docs/openshift-docs-asciidoc:latest
+
+podman rmi localhost/openshift-docs-asciidoc:latest
+
+podman build --platform linux/arm64 --tag quay.io/redhat-docs/openshift-docs-asciidoc:multiarch -f asciidoc.Dockerfile
 
 podman tag <commit_hash> quay.io/redhat-docs/openshift-docs-asciidoc:multiarch
 
 podman push quay.io/redhat-docs/openshift-docs-asciidoc:multiarch
 ```
 
-# testing
+The image is available from https://quay.io/repository/redhat-docs/openshift-docs-asciidoc?tab=tags&tag=latest
+
+To use it, `podman pull quay.io/redhat-docs/openshift-docs-asciidoc`.
+
+## Testing
 
 ```cmd
 podman run --rm -it -v "$(pwd)":~/ocpd-src:Z <commit_hash> sh -c 'asciidoctor -v'