message: Added docs to config.d.ts
diff: */
  export interface Config {
  kafka?: {
  + /**
  + * Client ID used to Backstage uses to identify when connecting to the Kafka cluster.
  + */
  clientId: string;
  + /**
  + * List of brokers in the Kafka cluster to connect to.
  + */
  brokers: string[];
  +
  + /**
  + * Optional SSL connection parameters to connect to the cluster. Passed directly to Node tls.connect.
  + * See https://nodejs.org/dist/latest-v8.x/docs/api/tls.html#tls_tls_createsecurecontext_options
  + *
  + * @visibility secret
  + */
  ssl?: {
  ca: string[];
  key: string;
  