add project description

README.md

@@ -1,7 +1,7 @@
 
 <div align="center">
 
-[![PyPI](https://img.shields.io/pypi/v/)](https://pypi.org/project/modelscope/)
+[![PyPI](https://img.shields.io/pypi/v/modelscope)](https://pypi.org/project/modelscope/)
 <!-- [![Documentation Status](https://readthedocs.org/projects/easy-cv/badge/?version=latest)](https://easy-cv.readthedocs.io/en/latest/) -->
 [![license](https://img.shields.io/github/license/modelscope/modelscope.svg)](https://github.com/modelscope/modelscope/blob/master/LICENSE)
 [![open issues](https://isitmaintained.com/badge/open/modelscope/modelscope.svg)](https://github.com/modelscope/modelscope/issues)