Adding attachments to initial interaction response

[DocJade]

In #157 , The issue was closed without actually applying the changes, But the fix shown in the commit does in fact work. (after renaming f to builder)

I have had luck applying this fix manually, it seems good to go?

[DocJade]

I am quite new to GitHub and the overall software dev scene, so if this is considered a "Breaking change" let me know.