update readme

Author: taoshengshi

README.md

@@ -1,15 +1,13 @@
 # JZFS
-A version control file system for data linage & data collaboration.
+Golang implementation of JZFS: version control file system for datasets management in the era of AI.
 
 <p align="left">
   <a href="https://codecov.io/gh/jiaozifs/jiaozifs"><img src="https://codecov.io/gh/gitdataai/jiaozifs/branch/main/graph/badge.svg" /></a>
   <a href="https://goreportcard.com/report/github.com/jiaozifs/jiaozifs"><img src="https://goreportcard.com/badge/github.com/gitdataai/jiaozifs" /></a>  
   <a href=""><img src="https://img.shields.io/badge/golang-%3E%3D1.22.0-blue.svg" /></a>
   <br/>
 </p>
-
-<a href="https://github.com/GitDataAI/jzfs"><img src="https://github.com/GitDataAI/jzfs/blob/main/docs/logo/jzfs-go.png?raw=true" width="100" /></a>
-
+<a href="https://github.com/GitDataAI/jzfs"><img src="https://github.com/GitDataAI/jzfs/blob/main/docs/logo/jzfs-go.png?raw=true" width="80%"/></a>   
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 JZFS is an industry-leading **Data-Centric Version Control** File System, helps ensure Responsible AI Engineering by improving **Data Versioning**, **Provenance**, and **Reproducibility**.