🔨 initialize markdown at gdoc creation

[danyx23]

Lucas noticed that some unpublished data insights don't have content in the markdown column - this PR should make sure that going forward the markdown column is filled.

It would be good to also add a migration for the ones that are missing markdown but I don't have time for that rn

[owidbot]

Quick links (staging server):

Site	Admin	Wizard	Docs

Login: ssh owid@staging-site-set-markdown-at-gdoc-creation

• Site-screenshots: https://github.com/owid/site-screenshots/compare/set-markdown-at-gdoc-creation
• SVG tester: https://github.com/owid/owid-grapher-svgs/compare/set-markdown-at-gdoc-creation

SVG tester:

Number of differences (default views): 0 ✅
Number of differences (all views): 0 ✅

Edited: 2024-11-13 13:07:21 UTC
Execution time: 1.19 seconds

[ikesau]

I'm not sure if this is working - my markdown column stays null when I publish or update an article. I think it's not getting called in the PUT code path.

[github-actions]

This PR has had no activity within the last two weeks. It is considered stale and will be closed in 3 days if no further activity is detected.