docs: add insert/query data in developer guide

docs/en/15-programming/01-connect/index.md

 ---
-sidebar_label: Connect
+sidebar_label: Quick Start
 title: Connect to TDengine Cloud Service
 description: Quick start of using TDengine connectors to connect to TDengine cloud service
 ---

docs/en/15-programming/03-insert.md

+---
+sidebar_label: Insert
+title: Insert Data Into TDengine
+description: Programming Guide for Inserting Data into TDengine
+---
+
+To quickly start your programming about writing data into TDengine, please refer to [Insert Data](../../data-in/sql).
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docs/en/15-programming/04-query.md

+---
+sidebar_label: Query
+title: Query Data From TDengine
+description: Programming Guide for Querying Data
+---
+
+To quickly start your programming about querying data from TDengine, please refer to [Query Data](../../data-out/sql).
\ No newline at end of file