- Split macros.html in per-edition files
- Create new snippets.html macro file with utterances snippet
- Move support.html to snippets.html as new macro
- Create new `latest_post` macro in 2nd edition macros.html
The <article> tag is for self-contained content, which the post list isn't really. I hope that this change makes search engines display the blog's introduction instead of the first post's introduction in their results.
