updated README.md

Author: dmytro-landiak

README.md

@@ -75,6 +75,7 @@ Last but not least, it had been running in production for more than a year befor
 - All MQTT v5.0 features
 - Multi-node cluster support
 - X.509 certificate chain authentication support
+- JWT authentication
 - Access control (ACL) based on client ID, username, or X.509 certificate chain
 - REST query support for clients’ sessions and subscriptions
 - Rate limits of message processing
@@ -84,6 +85,8 @@ Last but not least, it had been running in production for more than a year befor
 - Integrations with external systems (HTTP, MQTT, Kafka)
 - Kafka topics and consumer groups monitoring
 - Proxy protocol
+- Blocked clients
+- MQTT channel backpressure support
 
 ## Documentation