update doc

Author: sebthom

README.md

@@ -119,7 +119,6 @@ Name|Default Value|Description
 ----|-------------|-----------
 GITEA_INSTANCE_INSECURE|`false`|It `true` don't verify the TLS certificate of the Gitea instance
 GITEA_RUNNER_NAME|`<empty>`|If not specified the container's hostname is used
-GITEA_RUNNER_LABELS|`<empty>`|Comma-separated list of labels in the format of `label[:schema[:args]]`.<br>If not specified the following labels are used<ol><li>`ubuntu-latest:docker://catthehacker/ubuntu:act-latest`<li>`ubuntu-22.04:docker://catthehacker/ubuntu:act-22.04`<li>`ubuntu-20.04:docker://catthehacker/ubuntu:act-20.04`</ol>
 GITEA_RUNNER_REGISTRATION_FILE|`/data/.runner`|The JSON file that holds the result from the runner registration with the Gitea instance
 GITEA_RUNNER_REGISTRATION_TIMEOUT|`30`|In case of failure, registration is retried until this timeout in seconds is reached
 GITEA_RUNNER_REGISTRATION_RETRY_INTERVAL|`5`|Wait period in seconds between registration retries
@@ -139,6 +138,7 @@ The following environment variables are referenced in the `/opt/config.template.
 
 Name|Default Value|Description
 ----|-------------|-----------
+GITEA_RUNNER_LABELS|`<empty>`|Comma-separated list of labels in the format of `label[:schema[:args]]`.<br>If not specified the following labels are used<ol><li>`ubuntu-latest:docker://catthehacker/ubuntu:act-latest`<li>`ubuntu-22.04:docker://catthehacker/ubuntu:act-22.04`<li>`ubuntu-20.04:docker://catthehacker/ubuntu:act-20.04`</ol>
 GITEA_RUNNER_LOG_LEVEL|`info`|The level of logging, can be trace, debug, info, warn, error, fatal
 GITEA_RUNNER_ENV_FILE|`/data/.env`|Extra environment variables to run jobs from a file
 GITEA_RUNNER_FETCH_TIMEOUT|`5s`|The timeout for fetching the job from the Gitea instance