[logging] fix typo in documents (#5878)
[logging] fix typo in documents (#5878)


jwhui/openthread,jwhui/openthread,openthread/openthread,openthread/openthread,chshu/openthread,bukepo/openthread,abtink/openthread,chshu/openthread,chshu/openthread,jwhui/openthread,bukepo/openthread,srickardti/openthread,openthread/openthread,srickardti/openthread,chshu/openthread,jwhui/openthread,abtink/openthread,srickardti/openthread,chshu/openthread,srickardti/openthread,openthread/openthread,abtink/openthread,bukepo/openthread,chshu/openthread,bukepo/openthread,abtink/openthread