chore: update secret-envs description

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/ci.yml

@@ -393,7 +393,7 @@ jobs:
             MYSECRET=foo
             INVALID_SECRET=
 
-  secret-env:
+  secret-envs:
     runs-on: ubuntu-latest
     steps:
       -

README.md

@@ -238,7 +238,7 @@ Following inputs can be used as `step.with` keys
 | `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 [secrets](https://docs.docker.com/engine/reference/commandline/buildx_build/#secret) to expose to the build using environment variables (e.g., MY_SECRET=MY_ENV_VAR)      |
+| `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`)         |
 | `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                                                 |

action.yml

@@ -81,7 +81,7 @@ inputs:
     description: "List of secrets to expose to the build (e.g., key=string, GIT_AUTH_TOKEN=mytoken)"
     required: false
   secret-envs:
-    description: "List of secrets to expose to the build using environment variables (e.g., MY_SECRET=MY_ENV_VAR)"
+    description: "List of secret env vars to expose to the build (e.g., key=envname, MY_SECRET=MY_ENV_VAR)"
     required: false
   secret-files:
     description: "List of secret files to expose to the build (e.g., key=filename, MY_SECRET=./secret.txt)"