Add topics to kafka backends description

README.md

@@ -150,6 +150,7 @@ Vehicles must be running firmware version 2023.20.6 or later.  Some older model
 ## Backends/dispatchers
 The following [dispatchers](./telemetry/producer.go#L10-L19) are supported
 * Kafka (preferred): Configure with the config.json file.  See implementation here: [config/config.go](./config/config.go)
+  * Topics will need to be created for \*prefix\*`_V`, \*prefix\*`_alerts`, and \*prefix\*`_errors`. The default prefix is `tesla`
 * Kinesis: Configure with standard [AWS env variables and config files](https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html). The default AWS credentials and config files are: `~/.aws/credentials` and `~/.aws/config`.
   * By default, stream names will be \*configured namespace\*_\*topic_name\*  ex.: `tesla_V`, `tesla_errors`, `tesla_alerts`, etc
   * Configure stream names directly by setting the streams config `"kinesis": { "streams": { *topic_name*: stream_name } }`