Allow variables in documentation comments

[shiimizu]

Is there a way to do this?
justfile:

current_version := '0.2.3'
another_way := `./bin/getversion`

# Update to next version [Current: {{current_version}}]
update:
  ./bin/update

Output:

$ just --list
Available recipes:
    update # Update to next version [Current: 0.2.3]

[casey]

That's an interesting feature! It's currently not possible. I can imagine adding this if #495 is implemented.

[casey]

Closing in favor of #2521, since that fixes this for all attributes.