Doc the refresh rate

Fixes #213
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Michael Woods 2022-10-17 20:58:37 -04:00 committed by GitHub
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@ -13,7 +13,7 @@ Collect the following information:
1. MQTT server information: hostname, username, password
1. If using TLS, define `MQTT_PORT` and `MQTT_TLS=true`
Supply these values to the ENV vars below.
Supply these values to the ENV vars below. The default data refresh interval is 30 minutes and can be overridden with ONSTAR_REFRESH with values in milliseconds.
### [Docker](https://hub.docker.com/r/michaelwoods/onstar2mqtt)
```shell