Update readme

README.md

@@ -36,7 +36,7 @@ Reliable and modern [Redis-streams](https://redis.io/topics/streams-intro) based
 
 - [x] Orkid let Redis do the heavy lifting with [redis streams](https://redis.io/topics/streams-intro).
 - [x] Uses [`luin/ioredis`](https://github.com/luin/ioredis) for connection, so supports redis single instance, redis cluster, redis sentinel.
-- [x] **Adjustable concurrency** per consumer instance. See example code. [See example code](https://github.com/mugli/orkid-node/tree/master/examples/basic).
+- [x] **Adjustable concurrency** per consumer instance for scaling task processing. See example code. [See example code](https://github.com/mugli/orkid-node/tree/master/examples/basic).
 - [x] Job **timeouts** and **retries**. All configurable per consumer. [See example code](https://github.com/mugli/orkid-node/tree/master/examples/failure-timeout-retry).
 - [x] Task **Deduplication**. If a task is already waiting in the queue, it can be configured to avoid queueing the same task again. _(Useful for operations like posting database record updates to elasticsearch for re-indexing. Deduplication is a common pattern here to avoid unnecessary updates)_. [See example code](https://github.com/mugli/orkid-node/tree/master/examples/deduplication).
 - [ ] Monitoring and management **UI** for better visibility.
@@ -155,6 +155,13 @@ consumer.start();
 
 <p></p>
 
+<details>
+  <summary>What is the order of job/task/delivery?</summary>
+  [TODO: ]
+</details>
+
+<p></p>
+
 <details>
   <summary>How do I ensure durability/persistence in Redis?</summary>
   [TODO: ]