update README

README.md

@@ -15,6 +15,8 @@ To uninstall, just type `pip uninstall auto_git_info`
 Basic usage
 -----
 
+##### Python module
+
 ```python
 from auto_git_info import log_info
 import argparse
@@ -38,6 +40,21 @@ The json file created will be:
  "time": "2023-06-23T18:04:30.894271"}
 ```
 
+##### Command line
+
+Just launch the auto_git_info module followed by your python script and its arguments
+as usual.
+
+```
+python -m auto_git_info your_script.py args1 ... -optn argsn
+```
+
+or if you want to change the default path:
+
+```
+python -m auto_git_info log_info=path.json your_script.py args1 ... -optn argsn
+```
+*Note that using this method will add `parsed_arguments=False` to the json*
 
 Advance usage
 -------------