docs(console): show the application binary run bare and with --help

docs/console/introduction.md

@@ -15,6 +15,43 @@ WinterCMS has one console entry point, `php artisan`. SummerCMS has two programs
 
 The application binary is what you deploy, so everything that must run in production, such as migrations and workers, is a command of the binary rather than of `summer`.
 
+Run with no arguments, the binary prints its usage and every command it has, the framework's and those its plugins add; `--help` prints the same:
+
+```sh
+./bin/acme
+./bin/acme --help
+```
+
+```text
+Usage:
+  acme [command]
+
+Available Commands:
+  admin:create         Create an activated backend administrator
+  admin:reset-password Reset a backend administrator password and revoke existing tokens
+  admin:token:create   Create a personal API token for a backend administrator
+  admin:token:list     List personal API tokens for a backend administrator (or all)
+  admin:token:revoke   Revoke a personal API token by id
+  admin:token:scopes   List available personal API token scopes
+  deferred:purge       Delete expired deferred bindings with their pending uploads and created records
+  greeter:hello        Print the configured application name
+  help                 Help about any command
+  key:generate         Print a fresh 32-byte base64 app.key
+  migrate              Run plugin migrations in dependency order
+  migrate:rollback     Roll back the last migration of a plugin
+  migrate:status       Show per-plugin migration history
+  queue:clear          Clear all queued jobs, by deleting all pending jobs.
+  queue:work           Run background job workers in the foreground
+  route:list           List registered HTTP routes
+  schedule:run         Run the scheduler in the foreground (or once for system cron)
+  serve                Serve the application HTTP API
+
+Flags:
+  -h, --help   help for acme
+
+Use "acme [command] --help" for more information about a command.
+```
+
 ## Getting help
 
 Both programs list their commands with `--help`, and every command accepts `--help` for its arguments and flags: