Improve doc

README.rst

@@ -56,7 +56,10 @@ A JSON file containing name as key
    >>> l['a']['b']['c']['d']['e']['f']
    1
 
-refer `Tests_ <https://github.com/Agent-Hellboy/trace-dkey/tree/main/tests/>`_. for other examples
+Documentation
+=============
+
+For more details, you can refer to the `documentation <https://agent-hellboy.github.io/trace-dkey/>`_.
 
 General Info
 ============

docs/index.md

@@ -11,3 +11,30 @@ You can install Trace DKey using pip:
 pip install trace-dkey
 ```
 
+## Usage
+
+### As a Command-Line Tool
+You can use trace-dkey as a command-line tool:
+
+```bash
+python -m trace_dkey --file=test.json --key=name
+```
+
+### As a Python Library
+
+You can use trace-dkey in your Python code as follows:
+
+```python
+from trace_dkey import trace
+
+data = {'a': {'b': {'c': {'d': {'e': {'f': 1}}}}}}
+path = trace(data, 'f')
+print(path)   # Output: [['a', 'b', 'c', 'd', 'e', 'f']]
+``` 
+
+
+
+
+
+
+