Merge pull request #1548 from crazy-max/docs-link-secret-inputs

readme: link secret inputs to the GitHub Actions secrets guide

Author: tonistiigi

README.md

@@ -249,9 +249,9 @@ The following inputs can be used as `step.with` keys:
 | `pull`             | Bool        | Always attempt to pull all referenced images (default `false`)                                                                                                                    |
 | `push`             | Bool        | [Push](https://docs.docker.com/engine/reference/commandline/buildx_build/#push) is a shorthand for `--output=type=registry` (default `false`)                                     |
 | `sbom`             | Bool/String | Generate [SBOM](https://docs.docker.com/build/attestations/sbom/) attestation for the build (shorthand for `--attest=type=sbom`)                                                  |
-| `secrets`          | List        | List of [secrets](https://docs.docker.com/engine/reference/commandline/buildx_build/#secret) to expose to the build (e.g., `key=string`, `GIT_AUTH_TOKEN=mytoken`)                |
-| `secret-envs`      | List/CSV    | List of [secret env vars](https://docs.docker.com/engine/reference/commandline/buildx_build/#secret) to expose to the build (e.g., `key=envname`, `MY_SECRET=MY_ENV_VAR`)         |
-| `secret-files`     | List        | List of [secret files](https://docs.docker.com/engine/reference/commandline/buildx_build/#secret) to expose to the build (e.g., `key=filename`, `MY_SECRET=./secret.txt`)         |
+| `secrets`          | List        | List of [secrets](https://docs.docker.com/build/ci/github-actions/secrets/) to expose to the build (e.g., `key=string`, `GIT_AUTH_TOKEN=mytoken`)                                 |
+| `secret-envs`      | List/CSV    | List of [secret env vars](https://docs.docker.com/build/ci/github-actions/secrets/) to expose to the build (e.g., `key=envname`, `MY_SECRET=MY_ENV_VAR`)                          |
+| `secret-files`     | List        | List of [secret files](https://docs.docker.com/build/ci/github-actions/secrets/) to expose to the build (e.g., `key=filename`, `MY_SECRET=./secret.txt`)                          |
 | `shm-size`         | String      | Size of [`/dev/shm`](https://docs.docker.com/engine/reference/commandline/buildx_build/#shm-size) (e.g., `2g`)                                                                    |
 | `ssh`              | List        | List of [SSH agent socket or keys](https://docs.docker.com/engine/reference/commandline/buildx_build/#ssh) to expose to the build                                                 |
 | `tags`             | List/CSV    | List of tags                                                                                                                                                                      |