docs: list the taskbus lab

README.md

@@ -11,6 +11,7 @@ deliberately no parent aggregator POM, so every lab stays standalone.
 | [spring-boot/](spring-boot/) | `try-spring-boot` | Spring Boot with Couchbase |
 | [guice/](guice/) | `try-guice` | Google Guice dependency injection |
 | [event-bus/](event-bus/) | `try-event-bus` | Event-bus pattern |
+| [taskbus/](taskbus/) | `taskbus` | Pinning a user's tasks to one executor to keep their order |
 | [netty/](netty/) | `try-netty` | Netty 4 channel handlers (JSON / FlatBuffers packets) |
 | [resilience4j/](resilience4j/) | `try-resilience4j` | Resilience4j fault-tolerance demo |
 | [discord4j/](discord4j/) | `try-discord4j` | Discord4J bot starter |