address comments

Signed-off-by: Kai Dubauskas <kai.dubauskas@doordash.com>

docs/notifications/processors.md

@@ -150,7 +150,7 @@ notifications:
           - C12345678
         username: 'Backstage Bot' # Optional, defaults to the name of the Slack App.
         concurrencyLimit: 20 # Optional, number of messages allowed per interval. Defaults to 10.
-        throttleInterval: 1m # Optional, ISO 8601 duration (or ms value). Defaults to 1 minute.
+        throttleInterval: 1m # Optional, Accepts ISO-8601 duration, ms-style ("1m", "30s"), or HumanDuration ({ minutes: 2  }). Defaults to 1 minute
 ```
 
 Multiple instances can be added in the `slack` array, allowing you to have multiple configurations if you need to send

plugins/notifications-backend-module-slack/config.d.ts

@@ -31,11 +31,11 @@ export interface Config {
          */
         broadcastChannels?: string[];
         /**
-         * Concurrency limit for Slack notifications, defaults to 10
+         * Concurrency limit for Slack notifications per backend instance of the notifications plugin, defaults to 10.
          */
         concurrencyLimit?: number;
         /**
-         * Throttle duration between Slack notifications, defaults to 1 minute
+         * Throttle duration between Slack notifications per backend instance of the notifications plugin, defaults to 1 minute.
          */
         throttleInterval?: HumanDuration | string;
       }>;