[Doc] - Update link to the contribution guide

[manuelbuil]

The link was outdated and pointing nowhere

Signed-off-by: Manuel Buil [email protected]

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This change is 

[pchaigno]

This is not the first such pull request. Maybe we should reintroduce contributing/contributing/ and set up a redirect?

[coveralls]

Coverage increased (+0.01%) to 45.524% when pulling 6edb33d on manuelbuil:master into f104521 on cilium:master.

[tgraf]

This is not the first such pull request. Maybe we should reintroduce contributing/contributing/ and set up a redirect?

Do you see a common scenario where users will run into the old link once it is fixed? Some cached version?

[pchaigno]

Do you see a common scenario where users will run into the old link once it is fixed? Some cached version?

Any user that's on an older version of the documentation (e.g., because they landed there from a Google search) and switches to latest will get a 404.

[tgraf]

Any user that's on an older version of the documentation (e.g., because they landed there from a Google search) and switches to latest will get a 404.

Are you referring to the Cilium documentation? The broken link was in the CONTRIBUTING.mdof the git tree. I would assume that developers will typically look at the version inmaster` when looking at this file and not in older branches.

[pchaigno]

I'm referring to the Read the docs documentation, not files in the repository. Even once we've found all broken links to contributing/contributing/ in the sources, we'll still have a broken redirect on Read the docs when switching between versions of the documentation.