[Feature Request] Rel canonical tags

[logicmason]

One common SEO concern for anyone syndicating their content is that their own site gets the credited for their articles (instead of Medium, Dev.to, etc)

The common pattern on those sites is to take this from the front matter. I.e., canonical_url: https://example.com/my-article in the front matter will result in the following being in the head of the published article:
<link rel="canonical" href="https://example.com/my-article/" />

[lorisleiva]

Hi there 👋

Thanks for raising this.

I'll try to implement something as soon as I've got some free time otherwise I wouldn't be opposed to a PR.

[logicmason]

Great! Sorry about not writing one. I would if I were more familiar with VuePress (and may yet at some point!) Loris Leiva <notifications@github.com> 於 2019年12月18日 週三 上午1:00 寫道：

…

Hi there 👋 Thanks for raising this. I'll try to implement something as soon as I've got some free time otherwise I wouldn't be opposed to a PR. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2?email_source=notifications&email_token=AABZ2FE4EMFCSKMVL54L553QZEASLA5CNFSM4J3HNMK2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEHDHFMY#issuecomment-566653619>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AABZ2FA4RJJR3SP3KGSBRDLQZEASLANCNFSM4J3HNMKQ> .

[adarshmadrecha]

Any plan to add canonical links meta tag?
<link rel="canonical" href="https://example.com/my-article/" />

[adarshmadrecha]

Vuepress v1.7.0 added support for canonical links.

Just add below on top of any markdown file.

---
canonical: https://google.com
---

Reference: vuejs/vuepress#2658