Add more articles

Author: mincong-h

README.md

@@ -49,6 +49,10 @@ Articles wrote using code of this repository and other related repositories:
 - [How to prevent data loss in Elasticsearch?](https://mincong.io/en/prevent-data-loss-in-elasticsearch/) / [如何防止 Elasticsearch 中的数据丢失？](https://mincong.io/cn/prevent-data-loss-in-elasticsearch/)
 - [Elasticsearch Settings](https://mincong.io/en/elasticsearch-settings/) / [一文了解 Elasticsearch 设置](https://mincong.io/cn/elasticsearch-settings/)
 - [Internal Structure Of Snapshot Repository](https://mincong.io/en/elasticsearch-snapshot-repository-structure/) / [Elasticsearch 快照仓库的内部结构](https://mincong.io/cn/elasticsearch-snapshot-repository-structure/)
+- [Elasticsearch Snapshot Plugins](https://mincong.io/en/elasticsearch-snapshot-plugins/) / [Elasticsearch 的快照插件](https://mincong.io/cn/elasticsearch-snapshot-plugins/)
+- [Slow Query Logs In Elasticsearch](https://mincong.io/en/slow-logs-in-elasticsearch/)
+- [The Decision System For Shard Allocation in Elasticsearch](https://mincong.io/en/shard-allocation-deciders/)
+- [Internal Structure Of Elasticsearch Java High-Level REST Client](https://mincong.io/en/elasticsearch-hlrc/)
 
 ## Resources