Must be either:
> Rather than typing `permalink: /:categories/:year/:month/:day/:title/`, you can just type `permalink: pretty`.
or:
> Rather than typing `permalink: /:categories/:year/:month/:day/:title.html`, you can just type `permalink: date`.
I guess the former was meant to write because the latter was already mentioned in "Where to configure permalinks" section.
- made updates from Parkr's review
- update to Extensionless permalinks section
- update to note about not using built-in perm styles in front matter
- update for readability in places