Fix dead links at foundation-proposal.md

[tuminoid]

| FILE: ./design/community/foundation-proposal.md
| [✖] https://github.com/cncf/toc/blob/main/process/project_proposals.md
| 
| 8 links checked.
| 
| ERROR: 1 dead links found!
| [✖] https://github.com/cncf/toc/blob/main/process/project_proposals.md → Status: 404

/triage accepted
/help
/good-first-issue

Split from #328

[metal3-io-bot]

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In response to this:

| FILE: ./design/community/foundation-proposal.md
| [✖] https://github.com/cncf/toc/blob/main/process/project_proposals.md
| 
| 8 links checked.
| 
| ERROR: 1 dead links found!
| [✖] https://github.com/cncf/toc/blob/main/process/project_proposals.md → Status: 404

/triage accepted
/help
/good-first-issue

Split from #328

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[aditya7302]

@tuminoid
https://github.com/cncf/sandbox/issues/new?assignees=&labels=New&projects=&template=application.yml&title=%5BSandbox%5D+%3CProject+Name%3E?assignees=&labels=New&projects=&template=application.yml&title=%5BSandbox%5D+%3CProject+Name%3E
is this a valid link for the dead link for this issue ?

[tuminoid]

@tuminoid https://github.com/cncf/sandbox/issues/new?assignees=&labels=New&projects=&template=application.yml&title=%5BSandbox%5D+%3CProject+Name%3E?assignees=&labels=New&projects=&template=application.yml&title=%5BSandbox%5D+%3CProject+Name%3E is this a valid link for the dead link for this issue ?

No, https://github.com/cncf/toc/tree/main/process seems to be the right one, as it is v1.6 of the proposal process and the old link pointed to v1.5 of th same.

[geekrypter]

Hi @tuminoid, can I work on this issue?

[tuminoid]

Hi @tuminoid, can I work on this issue?

Sure, there has been no further activity in weeks.
/assign @geekrypter

[tuminoid]

/assign Jasonho420

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In response to this:

/assign Jasonho420

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