[Tracker] Fix broken links

[hbelmiro]

• [x] https://github.com/kubeflow/website/issues/3808
  • https://github.com/kubeflow/website/pull/3807
• [x] https://github.com/kubeflow/website/issues/3809
  • https://github.com/kubeflow/website/pull/3830
• [x] https://github.com/kubeflow/website/issues/3810
  • https://github.com/kubeflow/website/pull/3878
• [x] https://github.com/kubeflow/website/issues/3811
  • https://github.com/kubeflow/website/pull/3888
• [x] https://github.com/kubeflow/website/issues/3812
• [x] https://github.com/kubeflow/website/issues/3813
  • https://github.com/kubeflow/website/pull/3888

[Monokaix]

Another one: https://github.com/kubeflow/website/pull/3815 : )

[varodrig]

I have a draft PR for https://github.com/kubeflow/website/issues/3810. please assign to me. thanks. @hbelmiro