Calling the generator from cli works with different syntax from documentation

Describe the bug

Calling from cli using the suggested method with python -m does not work.

python -m openapi-python-client --version
PATH_TO_PYTHON\python.exe: No module named openapi-python-client

Using underscores, however, does work (python -m openapi_python_client -version):

python -m openapi_python_client --version
openapi-python-client version: 0.24.3

OpenAPI Spec File

Not applicable

Desktop (please complete the following information):

• OS: Windows 11 (Microsoft Windows NT 10.0.26100.0)
• Python Version: [e.g. 3.12.7]
• openapi-python-client version [e.g. 0.24.3]

Additional context

Running from a powershell instance in VSCode with a conda environment selected as a Python interpreter.

Would it be possible to add a line to the documentation mentioning the call with python -m?

從 issue 中連結的 README 位置開始，將其中記載的 python -m 呼叫方式與報告中所示的可正常運作的底線形式進行比較。在專案的 CLI 情境中驗證該指令，然後更新文件，使支援的呼叫方式明確且一致。完成的標準是新手可以成功依照 README 中的指令操作。