Improve usability of PDF

[humphd]

In #41 we're working on dynamically generating a PDF of the entire site's contents. It's going to be great to finallly have this.

The PDF that gets generated now is OK, but not as good as I'd like.

Let's see if we can improve some things:

• Improve cover page
• add pagination
• Remove web-only artifacts like "On this page" and "Edit this page"
• Figure out why some images don't show (e.g., ASCII Collating Sequence is missing)
• etc

[TueeNguyen]

More thing(s) I want to add:

• Generate correct headers. If we generate the pdf through localhost, the clickable headings will redirect us to, for example, localhost:3000/schedule which will not work if the server is not running

I'll add to the list if I can find more

[tcvan0707]

Hello @humphd , can i give this issue a try? Thank you

[humphd]

@tcvan0707 Sure thing.