Bot Updating Documentation

images/docker-letsencrypt.md

@@ -121,7 +121,7 @@ Docker images are configured using parameters passed at runtime (such as those a
 | `DUCKDNSTOKEN=` | Required if `VALIDATION` is set to `duckdns`. Retrieve your token from https://www.duckdns.org |
 | `EMAIL=` | Optional e-mail address used for cert expiration notifications. |
 | `ONLY_SUBDOMAINS=false` | If you wish to get certs only for certain subdomains, but not the main domain (main domain may be hosted on another machine and cannot be validated), set this to `true` |
-| `EXTRA_DOMAINS=` | Additional fully qualified domain names (comma separated, no spaces) ie. `extradomain.com,subdomain.anotherdomain.org` |
+| `EXTRA_DOMAINS=` | Additional fully qualified domain names (comma separated, no spaces) ie. `extradomain.com,subdomain.anotherdomain.org,*.anotherdomain.org` |
 | `STAGING=false` | Set to `true` to retrieve certs in staging mode. Rate limits will be much higher, but the resulting cert will not pass the browser's security test. Only to be used for testing purposes. |
 
 ### Volume Mappings (`-v`)