Update README.md

[javacaliente]

Ollama added a Windows version.
Added "Windows now in Preview"

What does this PR do?

Fixes # (issue)

Requirement/Documentation

• If there is a requirement document, please, share it here.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Chore (refactoring code, technical debt, workflow improvements)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Tests (Unit/Integration/E2E or any other test)
• This change requires a documentation update

Mandatory Tasks

• Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected. Make sure before submmiting this PR you run tests with evaluate.py