[WIP] Add basic README.md file with setup instructions

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Create a basic README.md file for the repository. The README should include at least the word 'setup.'

Example content:

Password Manager

This is a basic password manager application.

Setup

Instructions on how to set up and run the project will go here.

Feel free to improve or add more details if available.

This pull request was created from Copilot chat.

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