update pkgdown template

[ateucher]

Following the checklist at tidytemplate

• [x] usethis::use_pkgdown_github_pages()
• [x] Update DESCRIPTION to include Config/Needs/website: tidyverse/tidytemplate
• [x] Update _pkgdown.yml with appropriate template above.
• [x] Ping Hadley to add plausible.io record
• [ ] ~Remove strip_header: true~
• [ ] ~Remove algolia search, if used~
• [ ] ~Eliminate superseded navbar customisation (home: ~, article re-ordering)~
• [x] Update news structure if needed
• [ ] ~Remove any author info for tidyverse folks (since now included in template)~
• [x] Used newest pkgdown GitHub actions workflow

CNAME record not obtained yet - I will update the custom domain in settings (to rcmdcheck.r-lib.org) once we have the CNAME and this is merged

[ateucher]

CNAME record has been set up, it is now available at https://rcmdcheck.r-lib.org.

[gaborcsardi]

Thanks!