docs: Improve README

.env.sample

@@ -12,4 +12,4 @@ RUNNER_TIMEOUT=3h
 
 # Set to 'host', to use the host network. When left empty it creates a temporary
 # network for each container.
-#CONTAIER_NETWORK
+#CONTAINER_NETWORK

README.md

@@ -4,6 +4,21 @@
 
 !! WARNING: This recipe should be used with great caution, since it has access to the docker daemon. We recommend running it in a seperate vm or host !!
 
+<!-- metadata -->
+* **Category**: Apps
+* **Status**: 5
+* **LICENSE**: [GPLv3-or-later](https://code.forgejo.org/forgejo/runner/src/branch/main/LICENSE)
+* **Maintainers**: [Klasse & Methode](https://klasse-methode.it) (@p4u1 @p4u1_f4u1:matrix.org)
+* **Repository**: [code.forgejo.org/forgejo/runner](https://code.forgejo.org/forgejo/runner)
+* **Documentation**: [forgejo.org/docs/next/admin/actions/](https://forgejo.org/docs/next/admin/actions/)
+* **Image**: [`runner`](https://code.forgejo.org/forgejo/-/packages/container/runner/11), 4, upstream
+* **Healthcheck**: No
+* **Backups**: no
+* **Email**: 0
+* **Tests**: 0
+* **SSO**: 0
+<!-- endmetadata -->
+
 ## Registering
 
 The forgejo runner needs to be registered at the forgejo instance. For that see the [official documentation](https://forgejo.org/docs/latest/admin/runner-installation/#standard-registration) on how to create a token.