add redirects for all top level docs sections

_config.yml

@@ -18,6 +18,9 @@ url:              http://getbootstrap.com
 encoding:         UTF-8
 exclude:          [assets/scss/]
 
+gems:
+  - jekyll-redirect-from
+  
 # Custom vars
 current_version:  4.0.0-alpha
 repo:             https://github.com/twbs/bootstrap

docs/about/history.md

@@ -2,6 +2,7 @@
 layout: docs
 title: History
 group: about
+redirect_from: "/about/"
 ---
 
 Originally created by a designer and a developer at Twitter, Bootstrap has become one of the most popular front-end frameworks and open source projects in the world.

docs/components/buttons.md

@@ -2,6 +2,7 @@
 layout: docs
 title: Buttons
 group: components
+redirect_from: "/components/"
 ---
 
 Use Bootstrap's custom button styles for actions in forms, dialogs, and more. Includes support for a handful of contextual variations, sizes, states, and more.

docs/content/reboot.md

@@ -2,6 +2,7 @@
 layout: docs
 title: Reboot
 group: content
+redirect_from: "/content/"
 ---
 
 Part of Bootstrap's job is to provide an elegant, consistent, and simple baseline to build upon. We use Reboot, a collection of element-specific CSS changes in a single file, to kickstart that.

docs/getting-started/introduction.md

@@ -2,6 +2,7 @@
 layout: docs
 title: Introduction
 group: getting-started
+redirect_from: "/getting-started/"
 ---
 
 Bootstrap is the world's most popular framework for building responsive, mobile-first sites and applications. Inside you'll find high quality HTML, CSS, and JavaScript to make starting any project easier than ever.

docs/layout/overview.md

@@ -2,6 +2,7 @@
 layout: docs
 title: Overview
 group: layout
+redirect_from: "/layout/"
 ---
 
 Bootstrap includes several components and options for laying out your project, including wrapping containers, a powerful grid system, a flexible media object, and responsive utility classes.