Update README.md
Fixing broken link
@@ -40,7 +40,7 @@ JetStream is the [NATS.io](https://nats.io) persistence engine that will support
* [Restoring Data](#restoring-data)
* [Interactive CLI](#interactive-cli)
- [Model Deep Dive](#model-deep-dive)
- * [Stream Limits and Retention Modes](#stream-limits-and-retention-modes)
+ * [Stream Limits and Retention Modes](#stream-limits-retention-modes-and-discard-policy)
* [Message Deduplication](#message-deduplication)
* [Acknowledgement Models](#acknowledgement-models)
* [Exactly Once Delivery](#exactly-once-delivery)
