[Docs] optimization_ov.mdx links are updated

[daniil-lyakhov]

What does this PR do?

After the resent nncf docs refactoring some links are not available anymore. This pr replaces broken links to the actual one

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you make sure to update the documentation with your changes?
• Did you write any new necessary tests?

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[echarlaix]

thanks @daniil-lyakhov