Add local candidate validation

README.md

@@ -2,9 +2,9 @@
 
 ReleaseKit is an opinionated Go library and executable for a shared release
 process. The Go module, root `releasekit` facade, `buildinfo` runtime package,
-and `releasekit version` command are established; the library operations beyond
-runtime version access, remaining CLI commands, and release automation remain
-to be implemented. Their selected behavior and sequence are described in the
+local candidate check, and `version` and `check` commands are implemented.
+Publication, build, delivery, and release automation remain to be implemented.
+Their selected behavior and sequence are described in the
 [product roadmap](docs/roadmap/releasekit.md) and
 [implementation plan](docs/roadmap/implementation.md).
 
@@ -14,22 +14,31 @@ Run the offline Go test suite from the repository root with:
 go test ./...
 ```
 
-The current command prints ReleaseKit's version:
+The version command prints ReleaseKit's version:
 
 ```sh
 go run ./cmd/releasekit version
 ```
 
+The local candidate check validates a committed release note and runs the
+configured checks (or the default offline Go test command):
+
+```sh
+go run ./cmd/releasekit check v1.2.3
+```
+
 ## Documentation
 
 - [ReleaseKit proposal](docs/roadmap/releasekit.md): proposed publication, builds,
   version injection, and delivery, with the initial implementation plan.
 - [Contributor guide](docs/development.md): orientation, validation, and selective
   policy reading.
-- [CLI contract](docs/cli.md): the current `version` command and its output.
+- [CLI contract](docs/cli.md): the `version` and local `check` commands.
 - [Configuration](docs/config.md): profile fields and child-command settings.
 - [Runtime version guidance](docs/consumers/runtime-version.md): how applications
   read their embedded version through `buildinfo`.
+- [Candidate check guidance](docs/consumers/check.md): local candidate validation
+  through the Go API and CLI.
 - [Internal package inventory](docs/internal/overview.md): implemented internal
   components and their responsibilities.
 - [Architecture policy](docs/policy/architecture.md): responsibility and dependency