update description about tsfile

src/.vuepress/styles/index.scss

@@ -20,6 +20,7 @@
 // place your custom styles here
 #main-description {
   max-width: 55rem;
+  font-weight: 400;
 }
 
 .vp-site-name{

src/README.md

@@ -10,7 +10,7 @@ bgImageStyle:
   # background-repeat: repeat
   # background-size: initial
 heroText: File Format for Internet of Things
-tagline: TsFile is a columnar storage file format designed for time series data, which supports efficient compression, high throughput of read and write, and compatibility with various frameworks, such as Spark and Flink. It is easy to integrate TsFile into IoT big data processing frameworks.
+tagline: TsFile is a high-performance columnar storage file format designed for industrial time-series data, featuring multi-language interfaces, high compression ratios, high read/write throughput, and fast random access capabilities. It is ideal for scenarios such as building high-quality datasets, managing data assets, conducting data analytics, and training AI models.
 heroFullScreen: true
 actions:
   - text: Download

src/zh/README.md

@@ -10,7 +10,7 @@ bgImageStyle:
   # background-repeat: repeat
   # background-size: initial
 heroText: 物联网时序数据文件格式
-tagline: TsFile是一种为时间序列数据设计的列式存储文件格式，它支持高效压缩、高读写吞吐量，并且兼容多种框架，如Spark和Flink。TsFile很容易集成到物联网大数据处理框架中。
+tagline: TsFile 是一种为工业时序数据设计的高性能列式存储文件格式，支持多语言接口、高压缩比、高读写吞吐、快速随机访问。适用于构建高质量数据集、数据资产管理、数据分析与 AI 模型训练等场景。
 heroFullScreen: true
 actions:
   - text: 下载