Update README.md

README.md

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 ## Use Pipe instead of channel
 
 Pipe is a wrapper for a channel without the concept of topics, with the generic parameter corresponding to the type of the channel. `eventbus.NewPipe[T]()` is equivalent to `make(chan T)`. Publishers publish messages, and subscribers receive messages. You can use the `Pipe.Publish()` method instead of `chan <-`, and the `Pipe.Subscribe()` method instead of `<-chan`. 
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 If there are multiple subscribers, each subscriber will receive every message that is published.If you want to use a buffered channel, you can use the `eventbus.NewBufferedPipe[T](bufferSize int)` method to create a buffered pipe.Pipe also supports synchronous and asynchronous message publishing. If you need to use the synchronous method, call `Pipe.PublishSync()`.
 
 #### pipe example