[skip ci]Fix typo in appendix_a_basic_components.md (#9638)

Signed-off-by: Jael Gu <mengjia.gu@zilliz.com>
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Jael Gu 2021-10-11 19:24:54 +08:00 committed by GitHub
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@ -125,10 +125,10 @@ func (s *Session) GetSessions(prefix string) (map[string]*Session, int64, error)
// eventChannel.
// prefix is a parameter to know which service to watch and can be obtained in
// typeutil.type.go.
// revision is a etcd reversion to prevent missing key events and can be obtained
// revision is an etcd reversion to prevent missing key events and can be obtained
// in GetSessions.
// If a server up, a event will be add to channel with eventType SessionAddType.
// If a server down, a event will be add to channel with eventType SessionDelType.
// If a server up, an event will be added to channel with eventType SessionAddType.
// If a server down, an event will be added to channel with eventType SessionDelType.
func (s *Session) WatchServices(prefix string, revision int64) (eventChannel <-chan *SessionEvent) {}