docs: remove comment about parallel no wait publishers (#475)

Co-authored-by: echo <[email protected]>

Author: echo-youn

MIGRATION_GUIDE.md

@@ -235,15 +235,15 @@ val user = mediator.send(GetUserQuery("123"))
 
 // Notifications now require explicit PublishStrategy (with default)
 mediator.publish(UserCreatedNotification(user.id)) // Uses default strategy
-mediator.publish(UserCreatedNotification(user.id), PublishStrategy.PARALLEL_NO_WAIT)
+mediator.publish(UserCreatedNotification(user.id), PublishStrategy.CONTINUE_ON_EXCEPTION)
 ```
 
 ### 5. Update Mediator Creation
 
 **Before:**
 ```kotlin
 val mediator = MediatorBuilder(dependencyProvider)
-  .withPublishStrategy(ParallelNoWaitPublishStrategy())
+  .withPublishStrategy(ContinueOnExceptionPublishStrategy())
   .build()
 ```
 

projects/kediatr-core/src/main/kotlin/com/trendyol/kediatr/Mediator.kt

@@ -48,7 +48,6 @@ interface Mediator {
    *
    * @see PublishStrategy.DEFAULT
    * @see PublishStrategy.CONTINUE_ON_EXCEPTION
-   * @see PublishStrategy.PARALLEL_NO_WAIT
    * @see PublishStrategy.PARALLEL_WHEN_ALL
    */
   suspend fun <T : Notification> publish(notification: T, publishStrategy: PublishStrategy = PublishStrategy.DEFAULT)