README.md in fluent-plugin-gcloud-pubsub-custom-1.0.3 vs README.md in fluent-plugin-gcloud-pubsub-custom-1.1.0

- old
+ new

@@ -78,9 +78,10 @@
   - Set your credential file path.
   - Running fluentd on GCP, you can use scope instead of specifying this.
   - You can also use environment variable such as `GCLOUD_KEYFILE`.
 - `topic` (required)
   - Set topic name to publish.
+  - You can use placeholder in this param. See: https://docs.fluentd.org/v1.0/articles/buffer-section
 - `autocreate_topic` (optional, default: `false`)
   - If set to `true`, specified topic will be created when it doesn't exist.
 - `max_messages` (optional, default: `1000`)
   - Publishing messages count per request to Cloud Pub/Sub.
     - See https://cloud.google.com/pubsub/quotas#other_limits