Fix broken links from issue #3605

[Flink-ddd]

Fixes #3605

Description

This PR addresses the issue of broken links detected by the github-actions bot. It fixes three incorrect URLs in the documentation:

• In CONTRIBUTING.md, removed an expired Netlify preview example link.
• In intermediate_source/compiled_autograd_tutorial.rst, updated the link to the "Get Started with PyTorch 2.x" page to its new, correct URL.
• In recipes_source/intel_neural_compressor_for_pytorch.rst, updated the link for Intel® Neural Compressor to point to its main GitHub repository, as the official documentation site is currently inactive (returns a 404 error).

Checklist

• The issue that is being fixed is referred in the description (see above "Fixes #ISSUE_NUMBER")
• Only one issue is addressed in this pull request
• Labels from the issue that this PR is fixing are added to this pull request
• No unnecessary issues are included into this pull request

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/tutorials/3612

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

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