Update tasks.mdx

Co-authored-by: Mark Story <[email protected]>

Author: aldy505

develop-docs/self-hosted/tasks.mdx

@@ -59,7 +59,7 @@ system resources (CPU and RAM) accordingly.
 
 If you have reached the maximum number of `taskworker` replicas, you can scale
 your `taskbroker` replicas. First, you need to increase the number of partitions
-on "taskworker" topic in Kafka, the number of partitions should be greater than
+on "taskworker" topic in Kafka, the number of partitions should be evenly divisible by
 the number of `taskbroker` replicas that you're planning to scale to.
 Then due to the limited capability of Docker Compose, you will need to manually
 scale your `taskbroker` replicas. You can do this by adding more container