doc: refine description for all pages

docs/en/05-develop/01-connect/01-python.md

 ---
 sidebar_label: Python
 title: Connect with Python Connector
+description: Python Connector for TDengine.
 ---
 
 import Tabs from '@theme/Tabs';

docs/en/05-develop/01-connect/02-java.md

 ---
 sidebar_label: Java
 title: Connect with Java Connector
+description: Java Connector for TDengine.
 ---
 
 import Tabs from '@theme/Tabs';

docs/en/05-develop/01-connect/03-go.md

 ---
 sidebar_label: Go
 title: Connect with Go Connector
+description: Go Connector for TDengine.
 ---
 
 import Tabs from '@theme/Tabs';

docs/en/05-develop/01-connect/04-rust.md

 ---
 sidebar_label: Rust
 title: Connect with Rust Connector
+description: Rust Connector for TDengine
 ---
 import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';

docs/en/05-develop/01-connect/05-node.md

 ---
 sidebar_label: Node.js
 title: Connect with Node.js Connector
+description: Node.JS Connector for TDengine
 ---
 import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';

docs/en/05-develop/01-connect/09-rest-api.md

 ---
 sidebar_label: REST API
 title: REST API
+description: Communicate with TDengine Cloud Service through RESTful API 
 ---
 
 ## Config

docs/en/05-develop/02-model.md

 ---
 title: Data Model
+desription: Typical Data Model used in TDengine
 ---
 
 The data model employed by TDengine is similar to that of a relational database. You have to create databases and tables. You must design the data model based on your own business and application requirements. You should design the STable (an abbreviation for super table) schema to fit your data. This chapter will explain the big picture without getting into syntactical details.

docs/en/06-replication/index.md

 ---
 sidebar_label: Data Replication
 title: Data Replication
-description: Briefly introduce how to replicate data among TDengine cloud services
+description: Replicate data between TDengine cloud services
 ---
 
 TDengine provides full support for data replication. You can replicate data from TDengine cloud service to local TDengine, from local TDengine to TDengine cloud service, or from one cloud service to another one and it doesn't matter which cloud or region the two services reside in.
\ No newline at end of file

docs/en/08-data-in/01-insert-data.md

 ---
 sidebar_label: SQL
 title: Insert Data Using SQL
-description: This section describes how to insert data using TDengine SQL
+description: Insert data using TDengine SQL
 ---
 
 # Insert Data

docs/en/08-data-in/02-prometheus.md

 ---
 sidebar_label: Prometheus
 title: Prometheus for TDengine Cloud
-description: This topic introduces how to write data into TDengine from Prometheus.
+description: Write data into TDengine from Prometheus.
 ---
 
 Prometheus is a widespread open-source monitoring and alerting system. Prometheus joined the Cloud Native Computing Foundation (CNCF) in 2016 as the second incubated project after Kubernetes, which has a very active developer and user community.

docs/en/08-data-in/03-telegraf.md

 ---
 sidebar_label: Telegraf
 title: Telegraf for TDengine Cloud
-description: This section explains how to write data into TDengine from telegraf.
+description: Write data into TDengine from telegraf.
 ---
 
 Telegraf is an open-source, metrics collection software. Telegraf can collect the operation information of various components without having to write any scripts to collect regularly, reducing the difficulty of data acquisition.

docs/en/09-data-out/01-query.data.md

 ---
 sidebar_label: SQL
 title: Query Data Using SQL
-description: This topic introduces how to read data from TDengine using basic SQL.
+description: Read data from TDengine using basic SQL.
 ---
 
 # Query Data

docs/en/09-data-out/04-taosdump.md

 ---
 sidebar_label: taosDump
 title: Dump Data Using taosDump
-description: Introduces how to dump data from TDengine into files using taosDump
+description: Dump data from TDengine into files using taosDump
 ---
 
 # taosDump

docs/en/12-taos-sql/04-stable.md

 ---
 sidebar_label: Supertable
 title: Supertable
+description: Operations about Super Tables.
 ---
 
 ## Create a Supertable

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

 ---
 sidebar_label: Insert
 title: Insert
+description: Insert data into TDengine
 ---
 
 ## Syntax

docs/en/12-taos-sql/06-select.md

 ---
 sidebar_label: Select
 title: Select
+description: Query Data from TDengine.
 ---
 
 ## Syntax

docs/en/12-taos-sql/10-function.md

@@ -2,6 +2,7 @@
 sidebar_label: Functions
 title: Functions
 toc_max_heading_level: 4
+description: TDengine Built-in Functions.
 ---
 
 ## Single Row Functions

docs/en/12-taos-sql/12-distinguished.md

 ---
 sidebar_label: Time-Series Extensions
 title: Time-Series Extensions
+description: TimeSeries Data Specific Queries.
 ---
 
 As a purpose-built database for storing and processing time-series data, TDengine provides time-series-specific extensions to standard SQL.

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

 ---
 sidebar_label: Data Subscription
 title: Data Subscription
+description: Subscribe Data from TDengine.
 ---
 
 The information in this document is related to the TDengine data subscription feature.

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

 ---
 sidebar_label: Stream Processing
 title: Stream Processing
+description: Built-in Stream Processing.
 ---
 
 Raw time-series data is often cleaned and preprocessed before being permanently stored in a database. Stream processing components like Kafka, Flink, and Spark are often deployed alongside a time-series database to handle these operations, increasing system complexity and maintenance costs.

docs/en/12-taos-sql/16-operators.md

 ---
 sidebar_label: Operators
 title: Operators
+description: TDengine Supported Operators
 ---
 
 ## Arithmetic Operators

docs/en/12-taos-sql/17-json.md

 ---
 sidebar_label: JSON Type
 title: JSON Type
+description: JSON Data Type
 ---
 
 

docs/en/12-taos-sql/18-escape.md

 ---
 title: Escape Characters
+description: How to use Escape
 ---
 
 ## Escape Characters

docs/en/12-taos-sql/19-limit.md

 ---
-sidebar_label: Name and Size Limits
-title: Name and Size Limits
+sidebar_label: Limits
+title: Limits
+description: Naming Limits
 ---
 
 ## Naming Rules

docs/en/12-taos-sql/20-keywords.md

 ---
-sidebar_label: Reserved Keywords
+sidebar_label: Keywords
 title: Reserved Keywords
+description: Reserved Keywords in TDengine SQL
 ---
 
 ## Keyword List

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

 ---
-sidebar_label: User-Defined Functions
+sidebar_label: UDF
 title: User-Defined Functions (UDF)
+description: User Defined Functions
 ---
 
 You can create user-defined functions and import them into TDengine.

docs/en/12-taos-sql/27-index.md

 ---
 sidebar_label: Index
 title: Using Indices
+description: Use Index to Accelerate Query.
 ---
 
 TDengine supports SMA and FULLTEXT indexing.

docs/en/17-tools/03-taosbenchmark.md

 ---
 title: taosBenchmark
 sidebar_label: taosBenchmark
+description: Benchmark Tool  for TDengine.
 ---
 
 ## Introduction

docs/en/20-faq.md

-# FAQ
\ No newline at end of file