Michael Rose 869a0e5b73 Refactor seo.html and support OpenGraph image overrides (#1321) ...

- Refactor seo.html include and add `page.header.og_image` override
- DRY up handling of page images (`page.header.image`, `page.header.overlay_image`, `page.header.teaser`, and `site.og_image`).
- Allow page images to be set with `header.og_image` page variable in YAML Front Matter as per feature request in #1316.
- Add sample posts for testing `og_image` override
- Set author bio as site OpenGraph default image
- Document `page.header.og_image` OpenGraph override
- Update CHANGELOG and history

Close #1316

2017-10-26 15:50:13 -04:00

8.3 KiB

1600x800px

Raw History