Remove 'How to add tags' page

[teoli2003]

Now that tags are gone, this page is no more useful.

[teoli2003]

This fixes the last content bit of mdn/mdn#262

[OnkarRuikar]

We need to remove links to the page as well:

[`tags`]: https://developer.mozilla.org/en-US/docs/MDN/Writing_guidelines/Howto/Tag

[`Deprecated`](/en-US/docs/MDN/Writing_guidelines/Howto/Tag#technology_status_tags)

See [How to tag pages](/en-US/docs/MDN/Writing_guidelines/Howto/Tag) for information about which tags to apply.

See [How to properly tag pages](/en-US/docs/MDN/Writing_guidelines/Howto/Tag)

[teoli2003]

Good point. My brain malfunctioned and believed there would be no links to it… This is obviously not the case.

[github-actions]

Preview URLs

• /en-US/docs/MDN/Writing_guidelines/Experimental_deprecated_obsolete
• /en-US/docs/MDN/Writing_guidelines/Howto/Creating_moving_deleting
• /en-US/docs/MDN/Writing_guidelines/Howto/Write_an_api_reference

External URLs (7)

URL: /en-US/docs/MDN/Writing_guidelines/Howto/Write_an_api_reference
Title: How to write an API reference

• https://docs.github.com/en/pages/getting-started-with-github-pages/creating-a-github-pages-site (3 times)
• https://github.com/ (3 times)
• https://groups.google.com/a/mozilla.org/g/dev-platform/ (1 time)
• https://lists.w3.org/Archives/Public/public-webapps/ (1 time)
• https://webaudio.github.io/web-audio-api/ (1 time)
• https://www.google.com/intl/en/chrome/canary/ (1 time)
• https://www.mozilla.org/en-US/firefox/channel/desktop/ (1 time)

[OnkarRuikar]

and believed there would be no links to it… This is obviously not the case.

The onus shouldn't be put on contributors to remember these auto detectable things. It would be better if the PR check workflow, for every deleted document in the PR, grep(rg) entire content for links(/en-US/docs/${docPath}).

Or may be the document deletion script, after deletion, warn/log document containing references to the deleted document.

[teoli2003]

Or may be the document deletion script, after deletion, warn/log document containing references to the deleted document.

I think that yarn content move should fix Markdown links automatically. (I opened a yari issue for this: mdn/yari#8292 – the yari team signaled in it that they are accepting PRs for it)
and yarn content delete should list Markdown links to the deleted document so that the editor doesn't forget to edit them. (No yari issue opened for this yet)

Even if it doesn't work for links generated by macros, it will already solve many cases.

[hamishwillee]

The fact is, even if you add a redirect, that does not clean up the content around the page link. The redirect should really only be to fix up external links to the page, for which we have no control. I'm sure we all agree with that, and the need to clean up content when deleting/redirecting.

Sadly, I once proposed that deleting or moving a page should list the linked pages. That got closed by (as I recall) a warning added when you delete or redirect a page that you might need to do cleanup. We could request this in yari again.

Thanks very much for making this fix @teoli2003 !!!

[hamishwillee]

PS I think it might be worth having a single page covering page metadata, and sticking as much of our page metadata instructions elsewhere into that.