docs: update README for infra/ namespace and current inputs

README.md

@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: https://git.aceofba.se/logaritmisk/setup-buildx@v1
+      - uses: https://git.aceofba.se/infra/setup-buildx@v1
 
       - uses: docker/build-push-action@v6
         with:
@@ -37,7 +37,6 @@ jobs:
 | Name | Default | Description |
 |------|---------|-------------|
 | `endpoint` | `tcp://buildkit.gitea.svc.cluster.local:1234` | BuildKit TCP endpoint. Override only if you run a private buildkit somewhere else. |
-| `install` | `false` | Set up `docker build` as alias to `docker buildx build`. |
 | `version` | `latest` | buildx version, passed through to the upstream action. |
 
 ## Why