Check deadlinks

[lovincyrus]

Check dead links in *.md that cause docs build error

• ~~https://www.npmjs.com/package/vuepress-plugin-check-md~~
• ~~https://www.npmjs.com/package/netlify-plugin-checklinks~~
• ~~https://www.npmjs.com/package/hyperlink~~
• https://github.com/tcort/markdown-link-check
• https://github.com/gaurav-nelson/github-action-markdown-link-check

Related:

1. https://github.com/cosmos/cosmos-sdk/pull/7832
2. https://github.com/cosmos/vuepress-theme-cosmos/issues/140
3. https://github.com/cosmos/cosmos-sdk/pull/8353#issuecomment-765638877

---

Update

• It's been implemented on https://github.com/cosmos/cosmos-sdk/blob/master/.github/workflows/linkchecker.yml
• GitHub Action Workflow: https://github.com/cosmos/cosmos-sdk/runs/1745976788?check_suite_focus=true#step:4:1449
• Broken link https://github.com/cosmos/cosmos-sdk/blob/0.40.0/simapp/simd/cmd/root.go#L99-L121 still go unnoticed
• Ref: https://github.com/cosmos/cosmos-sdk/pull/8353#issuecomment-765638877

[lovincyrus]

Maybe it's necessary to add another workflow to check the deadlinks of the modified files for PRs on top of scanning for deadlinks every 24 hours.

cc: @marbar3778

[tac0turtle]

This is possible, I was wondering what is the best way to handle reidrects?