Added correct permalink and made sure back/next links were working properly.

Rakefile

@@ -161,7 +161,8 @@ namespace :site do
       end
       # Create a hash for the front matter that is to be included
       front_matter = {"layout" => "docs", "title" => "History",
-                      "permalink" => "/docs/history/"}
+                      "permalink" => "/docs/history/",
+                      "prev_section" => "upgrading"}
       # Finally we need to copy the file to the /history directory
       Dir.chdir('site/docs/') do
         File.open("history.md", "w") do |file|

site/docs/history.md

@@ -2,6 +2,7 @@
 layout: docs
 title: History
 permalink: /docs/history/
+prev_section: upgrading
 ---
 
 ## HEAD

site/docs/upgrading.md

@@ -2,6 +2,7 @@
 layout: docs
 title: Upgrading
 prev_section: resources
+next_section: history
 permalink: /docs/upgrading/
 ---