docs(readme): add br

Author: SWHL

docs/index.md

@@ -28,6 +28,8 @@ hide:
 <a href="https://semver.org/"><img alt="SemVer2.0" src="https://img.shields.io/badge/SemVer-2.0-brightgreen"></a>
 <a href="https://github.com/psf/black"><img src="https://img.shields.io/badge/code%20style-black-000000.svg"></a>
 
+<br/>
+
 <a href="https://trendshift.io/repositories/14258" target="_blank"><img src="https://trendshift.io/api/badge/repositories/14258" alt="opendatalab%2FMinerU | Trendshift" style="width: 250px; height: 55px;" width="250" height="55"/></a>
 
 </div>