- Add a ‘posts/index.org’ that just includes all of the posts and only exports
headings tagged with ‘summary’.
- Add summaries to all posts.
- Rename posts to include the date and time in the file name.
- Add an RSS feed from the new ‘posts/index.org’
Unfortunately generating an RSS feed from the ‘index.org’ doesn't work, so this
experiment is at a dead end for now.
