Update documentation dev guide with health check tips (#3526)
Update documentation dev guide with health check tips (#3526)


ctripcorp/apollo,yiming187/apollo,ctripcorp/apollo,yiming187/apollo,lepdou/apollo,lepdou/apollo,lepdou/apollo,nobodyiam/apollo,nobodyiam/apollo,ctripcorp/apollo,nobodyiam/apollo,nobodyiam/apollo,lepdou/apollo,ctripcorp/apollo,yiming187/apollo,yiming187/apollo