updating to new version of the textbook

[choldgraf]

This is a mega-refresh of the site using the newest version of Jupyter Book (which has been upgraded quite a lot since this textbook originally used it). The diff is probably way too big to overview, but this shouldn't change the content of the book at all, only the surrounding layout / style / javascript / etc.

Here's a preview of what it looks like:

http://predictablynoisy.com/textbook-prob140

Once @a-adhikari , @dibyaghosh , or @dcroce thinks it looks OK (e.g. no link has unexpectedly broken etc) then we can merge.

(note that in the future, updates will be much less-painful...it's just that the prob140 textbook started using jupyter-book way back in its early days)

[dibyaghosh]

Does this require that the _data/toc.yml file be manually updated? I can't seem to find a script that generates toc.yml

[choldgraf]

currently yeah, though I'm working on an auto-gen script for it. It seemed redundant to have SUMMARY.md that just created another structured text file, and you can include more information in yaml file (like adding section headers, etc)

[dibyaghosh]

OK, so the auto-gen script is very crucial for us - I don't think we'll upgrade to the new version of the site until we get that working. I'm happy to contribute to making that script as well once the initial rush of setting the course up dies down (probably be free this weekend), but let's table the upgrade for now.

Also, definitely agreed that we had a lot of redundancies with SUMMARY.md and the yml file, because of our migration from Gitbooks to Jekyll. I'm glad that we've finally cleaned up those old relics.

[choldgraf]

Thanks for the input - could you explain to me how you are using the TOC auto-gen script? Is the main problem that it is too much work to change section numbers automatically? Or some other reason?

[dibyaghosh]

Section numbers and section titles are the major concerns: especially near the beginning of the semester, there will be some rearranging of sections, chapters, and renaming of section titles. Prof. A will be making most of these changes, and she told me that it would be difficult on her part to maintain a table of contents file that's accurate like this, especially with the initial hecticness of the semester.

[choldgraf]

So the new version of jupyter-book automatically adds section numbers to the sidebar (so you don't need to hard-code them in).

In this book's case, I've kept the numbers hard-coded in the titles because the textbook was numbering the sub-sections, but wasn't numbering the top-level sections (e.g. they start with Chapter 1: XXX not 1. Chapter 1: XXX. If the latter is fine w/ you, then it'd be really easy to number the sections automatically.

For example, I switched number_toc_chapters to "true" in this PR and removed the hard-coded section numbers. This is what it looks like:

http://predictablynoisy.com/textbook-prob140/Chapter_02/00_Calculating_Chances.html

[choldgraf]

closing this for #3