update readme format

Author: Leif160519

midplatform/zookeeper/readme.md

@@ -1,6 +1,6 @@
 ## 参考
-[基于 Kubernetes 部署 Zookeeper（StatefulSet方式）][1]
-[K8s - 安装部署Kafka、Zookeeper集群教程（支持从K8s外部访问）][2]
+- [基于 Kubernetes 部署 Zookeeper（StatefulSet方式）][1]
+- [K8s - 安装部署Kafka、Zookeeper集群教程（支持从K8s外部访问）][2]
 
 [1]: https://blog.csdn.net/mojinchuan/article/details/131146470
 [2]: https://baijiahao.baidu.com/s?id=1780795587495150182&wfr=spider&for=pc

monitoring/elasticsearch-exporter/readme.md

@@ -1,6 +1,6 @@
 ## 参考
-[dashboard-2322][1]
-[k8s上部署 ElasticSearch Exporter 并接入看板和告警][2]
+- [dashboard-2322][1]
+- [k8s上部署 ElasticSearch Exporter 并接入看板和告警][2]
 
 [1]: https://grafana.com/grafana/dashboards/2322-elasticsearch/
 [2]: https://blog.51cto.com/wutengfei/6221557

monitoring/kafka-exporter/readme.md

@@ -1,4 +1,4 @@
 ## 参考
-[KAFKA监控一条龙：史上最强Kafka看板+监控配置与告警规则][1]
+- [KAFKA监控一条龙：史上最强Kafka看板+监控配置与告警规则][1]
 
 [1]: https://mp.weixin.qq.com/s/ZG3DjRoJ3IDeln-_KbvTDQ

skywalking/readme.md

@@ -1,6 +1,6 @@
 ## 参考
-[k8s部署skywalking保姆级教程][1]
-[PrometheusAlert添加Skywalking告警][3]
+- [k8s部署skywalking保姆级教程][1]
+- [PrometheusAlert添加Skywalking告警][3]
 
 ## 注意
 configmap中webhook的配置参考：[wechat][2]