Update README.md

README.md

@@ -27,17 +27,15 @@ jobs:
 
 _That's it!_ This workflow will build and publish your code to [GitHub Container Regsitry](https://ghcr.io).
 
-By default, the action sets `KO_DOCKER_REPO=ghcr.io/[owner]/[repo]`.
-See [documentation for `ko`](https://github.com/google/ko#configuration) to learn more about configuring `ko`.
+By default, the action sets `KO_DOCKER_REPO=ghcr.io/[owner]/[repo]` for all subsequent steps, and uses the `${{ github.token }}` to authorize pushes to GHCR.
 
-By default the action sets `KO_DOCKER_REPO` for all subsequent steps.
-Instead, if the `env` is already set when the action runs, it will skip logging in to ghcr.io and propagate `KO_DOCKER_REPO` for subsequent steps.
+See [documentation for `ko`](https://github.com/google/ko#configuration) to learn more about configuring `ko`.
 
-The action works on Linux and macOS [runners](https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners), and _should_ work for Windows runners when `ko` releases include Windows binaries (next `ko` release🤞! see [google/ko#339](https://github.com/google/ko/pull/339))
+The action works on Linux and macOS [runners](https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners). If you'd like support for Windows runners, [let me know](https://github.com/imjasonh/setup-ko/issues/new).
 
 ### Select `ko` version to install
 
-By default, `imjasonh/setup-ko` installs the latest released version of `ko`.
+By default, `imjasonh/setup-ko` installs the [latest released version of `ko`](https://github.com/google/ko/releases).
 
 You can select a version with the `version` parameter:
 
@@ -51,18 +49,24 @@ To build and install `ko` from source using `go get`, specify `version: tip`.
 
 ### Pushing to other registries
 
-By default, `imjasonh/setup-ko` configures `ko` to push images to [GitHub Container Registry](https://ghcr.io), but you can configure it to push to other registries.
+By default, `imjasonh/setup-ko` configures `ko` to push images to [GitHub Container Registry](https://ghcr.io), but you can configure it to push to other registries as well.
 
-To do this, you need to provide credentials to authorize the push.
+If `KO_DOCKER_REPO` is already set when `setup-ko` runs, it will skip logging in to ghcr.io and will propagate `KO_DOCKER_REPO` for subsequent steps.
+
+To do this, you should provide credentials to authorize the push.
 You can use [encrypted secrets](https://docs.github.com/en/actions/reference/encrypted-secrets) to store the authorization token, and pass it to `ko login` before pushing:
 
 ```
+
+steps:
+...
 - uses: imjasonh/setup-ko@v0.4
+  env:
+    KO_DOCKER_REPO: my.registry/my-repo
 - env:
     auth_token: ${{ secrets.auth_token }}
   run: |
     echo "${auth_token}" | ko login https://my.registry --username my-username --password-stdin
-    export KO_DOCKER_REPO=my.registry/my-repo
     ko publish ./
 ```