docs: adjust titles for seo compliance for 3.0 branch

docs/en/12-taos-sql/05-insert.md

@@ -1,7 +1,7 @@
 ---
 title: Insert
 sidebar_label: Insert
-description: This document describes how to insert data into TDengine.
+description: This document describes the SQL commands and syntax for inserting data into TDengine.
 ---
 
 ## Syntax

docs/en/12-taos-sql/13-tmq.md

@@ -1,5 +1,5 @@
 ---
-title: Data Subscription
+title: Data Subscription SQL Reference
 sidebar_label: Data Subscription
 description: This document describes the SQL statements related to the data subscription component of TDengine.
 ---

docs/en/12-taos-sql/14-stream.md

@@ -1,5 +1,5 @@
 ---
-title: Stream Processing
+title: Stream Processing SQL Reference
 sidebar_label: Stream Processing
 description: This document describes the SQL statements related to the stream processing component of TDengine.
 ---

docs/en/12-taos-sql/26-udf.md

@@ -1,5 +1,5 @@
 ---
-title: User-Defined Functions (UDF)
+title: User-Defined Functions (UDF) SQL Reference
 sidebar_label: User-Defined Functions
 description: This document describes the SQL statements related to user-defined functions (UDF) in TDengine.
 ---

docs/en/14-reference/07-tdinsight/index.md

@@ -1,5 +1,5 @@
 ---
-title: TDinsight - Grafana-based Zero-Dependency Monitoring Solution for TDengine
+title: TDinsight
 sidebar_label: TDinsight
 description: This document describes TDinsight, a monitoring solution for TDengine.
 ---

docs/en/25-application/01-telegraf.md

@@ -1,5 +1,5 @@
 ---
-title: Quickly Build IT DevOps Visualization System with TDengine + Telegraf + Grafana
+title: IT Visualization with TDengine + Telegraf + Grafana
 sidebar_label: TDengine + Telegraf + Grafana
 description: This document describes how to create an IT visualization system by integrating TDengine with Telegraf and Grafana.
 ---