fix readme

README.md

@@ -9,5 +9,6 @@ This package provides common library for DFS of CSST.
 This library can be installed from sources with the following command: 
 
 ```bash
-pip install git+https://github.com/astronomical-data-processing/csst-dfs-commons.git
+git clone https://csst-tb.bao.ac.cn/code/csst-dfs/csst-dfs-commons.git
+pip install ./csst-dfs-commons
 ```

setup.cfg

 [metadata]
-# replace with your username:
 name = csst_dfs_commons
 author =CSST DFS Team.
 author_email = weishoulin@astrolab.cn