Correct for new dir structure

It looks like a few things have been moved around on the site breaking
the scripts.

Change just shuffles some dirs around to get it working again.

bootstrap.sh

@@ -2,12 +2,14 @@
 
 # Cleanup
 rm -rf html
-mkdir -p html
+mkdir -p html/index
+mkdir -p html/sre-book
 cd html
 
 # Download
 wget --convert-links --mirror https://landing.google.com/sre/book/
-mv landing.google.com/sre/book/* .
+mv landing.google.com/sre/sre-book/* ./sre-book
+mv landing.google.com/sre/book/index.html ./index
 rm -rf landing.google.com
 cd ..
 
@@ -17,8 +19,8 @@ fi
 
 ruby generate.rb
 
-pushd html/chapters
-pandoc -f html -t epub -o ../../google-sre.epub --epub-metadata=../../metadata.xml --epub-cover-image=../../cover.jpg sre.html
+pushd html/sre-book/chapters
+pandoc -f html -t epub -o ../../../google-sre.epub --epub-metadata=../../../metadata.xml --epub-cover-image=../../../cover.jpg sre.html
 popd
 ebook-convert google-sre.epub google-sre.mobi
 ebook-convert google-sre.epub google-sre.pdf

generate.rb

@@ -3,7 +3,7 @@ require 'pp'
 require 'fileutils'
 # First we get the list of all the book sections:
 
-chapter_links = Nokogiri::HTML(open("html/index.html"))
+chapter_links = Nokogiri::HTML(open("html/index/index.html"))
   .css('#drop-down a')
   .map {|l| l.attribute('href').value}
 
@@ -11,7 +11,7 @@ html = ''
 chapter_links.each do |chapter_link|
   chapter_file = File.basename chapter_link
   html += "<span class=\"hidden\" name=\"#{chapter_file}\"></span>"
-  doc = Nokogiri::HTML(open("html/#{chapter_link}"))
+  doc = Nokogiri::HTML(open("html/index/#{chapter_link}"))
   content = doc.css('.content')
 
   # this title is with additional 'chapter X' in front
@@ -75,5 +75,5 @@ chapter_links.each do |chapter_link|
   html += content.inner_html
 end
 
-File.open("html/chapters/sre.html", 'w') { |file| file.write(html) }
+File.open("html/sre-book/chapters/sre.html", 'w') { |file| file.write(html) }
 puts "[html] Generated HTML file"