docs: Correct URLs

[nikcio]

No description provided.

[Copilot]

Pull request overview

This pull request updates documentation URLs from the old domain https://openapi.nikcio.com to the new GitHub Pages URL https://nikcio-labs.github.io/openapi-code-generator. The changes ensure that users are directed to the correct documentation site.

Changes:

• Updated PackageProjectUrl in the NuGet package configuration
• Updated documentation link in README.md

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/OpenApiCodeGenerator.Cli/OpenApiCodeGenerator.Cli.csproj	Updated PackageProjectUrl to point to the new GitHub Pages documentation site
README.md	Updated documentation link to point to the new GitHub Pages documentation site

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[Copilot]

The URL in the csproj file has a trailing slash while the URL in README.md does not. For consistency, both URLs should either include or exclude the trailing slash. The trailing slash is generally recommended for directory-based URLs like GitHub Pages sites to avoid unnecessary redirects.

Suggested change

	<a href="https://nikcio-labs.github.io/openapi-code-generator">Documentation</a> •
	<a href="https://nikcio-labs.github.io/openapi-code-generator/">Documentation</a> •