Dockerfile and VARIANT argument are no longer required

[johnbullnz]

This issue is for a: (mark with an x)

- [ ] bug report -> please search issues before submitting
- [ ] feature request
- [x] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Minimal steps to reproduce

N/A

Any log messages given by the failure

N/A

Expected/desired behavior

N/A

OS and Version?

Windows 10.

Versions

Mention any other details that might be useful

Thanks for setting up this repo.

The Docker container image is now set in .devcontainer/devcontainer.json (as mcr.microsoft.com/vscode/devcontainers/python:3.11-bullseye). The following changes are needed to the repository to align:

• Delete devcontainer/Dockerfile (now uses the mcr.microsoft.com image)
• Update README.md to remove references to VARIANT.

[pamelafox]

Thanks for the fix, merged!