Merge pull request go-mysql-org#716 from Trim21/patch-1

fix readme example

Author: lance6716

README.md

@@ -68,7 +68,7 @@ for {
 // or we can use a timeout context
 for {
 ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
-ev, err := s.GetEvent(ctx)
+ev, err := streamer.GetEvent(ctx)
 cancel()
 
 if err == context.DeadlineExceeded {