[Feature Request] Filename include a dirname

[nasyxx]

Can the filename include a dirname or a relative path from the root of a project?

For example:

├── main.py
├── render.py
└── utils
    ├── __init__.py
    └── render.py

I guess it would be better if filename in utils/render.py is utils/render.py instead of render.py.

By the way, this package is excellent.

[Shinrai]

This has been completed in pull request https://github.com/guiguan/file-header/pull/65