Hi , The document has not been updated for a long time. I found some problems in the process of reading the document today and made some changes.
1.add Frequently asked questions CN doc 2.add Docker Image CN doc 3.add Programming-JDBC CN doc 4.add TsFile API CN doc 5.some mini modifications https://github.com/apache/incubator-iotdb/pull/674 <https://github.com/apache/incubator-iotdb/pull/674> Best
