Give users suggestions on how to resolve `Cannot find implementation or library stub for module named "{module}"`

Feature

Give users suggestions on how to resolve Cannot find implementation or library stub for module named "{module}".

Pitch

I'm new to the ecosystem and didn't know a command that would fix mypy failing is pip install numpy. I think a suggestion on how to resolve this issue would help out people who don't use Python regularly, like myself.

Current behavior

p.py:1: error: Cannot find implementation or library stub for module named "numpy"
p.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports

Desired behavior

p.py:1: error: Cannot find implementation or library stub for module named "numpy"
p.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
p.py:1: note: The following command may help: pip install numpy

Cannot find implementation or library stub for module named "{module}" に対する mypy の診断から始め、メッセージにリンクされている既存の missing-import ドキュメントを確認してください。pip install numpy のような提案をどのように選択して表示すべきかを判断し、そのうえで既存の出力を壊すことなく診断に有用なコマンドが含まれることを確認してください。