Merge pull request #39 from ipfs/feat/about

feat(site): Add about section

site/public/_about.md

@@ -0,0 +1,18 @@
+#### Welcome to IPFS distributions
+
+This is the downloads website for all the official software distributions of
+the [IPFS Project](https://ipfs.io). You can find all the apps, binaries,
+and packages here. Every distribution has a section on this
+page with,
+
+* the distribution name and a short description
+* the current version number and release date
+* the software license (usually MIT)
+* a download button that detects your platform
+* a grid with download links for all supported platforms (os and architectures)
+* `Changelog`, a link to a summary of all version changes
+* `All Versions`, a link to view and download previous versions
+
+The `All Versions` link on each distribution shows directory listings for all the available versions, and a `versions` file ([example](http://dist.ipfs.io/go-ipfs/versions)). This file can be used by tools, such as [ipfs-update](#ipfs-update), to find all the available versions and download the latest.
+
+The directory listing of each version ([example](http://dist.ipfs.io/go-ipfs/v0.3.11)) has all the platform archives (`.zip` or `.tar.gz`), a `README.md` and a `dist.json` which describe the release for humans and machines. It is meant to be easily consumed and used by tools.

site/public/_layout.jade

@@ -11,6 +11,6 @@ html(lang='en')
       href='https://code.cdn.mozilla.net/fonts/fira.css'
       rel='stylesheet'
     )
-  body(data-spy='scroll' data-target='#d-navbar' data-offset='30')
+  body(data-spy='scroll' data-target='#d-navbar' data-offset='40')
     != yield
     script(src='build/script.js')

site/public/css/_about.less

@@ -0,0 +1,6 @@
+.d-about {
+  padding-top: 5 * @baseLineHeight;
+  padding-bottom: 3 * @baseLineHeight;
+  line-height: 1.5 * @baseLineHeight;
+  border-bottom: 1px solid @borderGray;
+}

site/public/css/style.less

@@ -9,3 +9,4 @@
 @import './_footer';
 @import './_sidebar';
 @import './_component';
+@import './_about';

site/public/index.jade

@@ -4,12 +4,18 @@ include ./_header.jade
 - architectureMap = {'darwin Binary': 'Mac OS X Binary', 'freebsd Binary': 'FreeBSD Binary', 'linux Binary': 'Linux Binary', 'windows Binary': 'Windows Binary'}
 
 .container
+  .row
+    #about.d-about.col-md-8.col-md-offset-2
+      include:markdown ./_about.md
   .row
     .d-sidebar-wrapper.col-md-2.sticky.navbar-offcanvas#d-navbar-offcanvas
       .d-sidebar
-        ul.nav#d-navbar: each value, key in public.releases
+        ul.nav#d-navbar
           li.d-sidebar-item.nav-item
-            a.d-sidebar-link.nav-link(href='##{key}')= key
+            a.d-sidebar-link.nav-link(href='#about') About
+          each value, key in public.releases
+            li.d-sidebar-item.nav-item
+              a.d-sidebar-link.nav-link(href='##{key}')= key
     .col-md-10: each value, key in public.releases
       .d-component(id='#{key}')
         - data = value._data