Adds GitHub markdown CSS

Author: zenorocha

bower.json

@@ -4,7 +4,8 @@
   "main": "github-readme.html",
   "dependencies": {
     "polymer": "Polymer/polymer#^1.4.0",
-    "iron-ajax": "~1.2.0"
+    "iron-ajax": "~1.2.0",
+    "github-markdown-css": "~2.3.0"
   },
   "devDependencies": {
     "iron-component-page": "PolymerElements/iron-component-page#^1.0.0",

github-readme.html

@@ -1,5 +1,6 @@
 <link rel="import" href="../polymer/polymer.html">
 <link rel="import" href="../iron-ajax/iron-ajax.html">
+<link rel="stylesheet" href="../github-markdown-css/github-markdown.css">
 
 <dom-module id="github-readme">
   <template>
@@ -15,9 +16,17 @@
       :host {
         display: block;
       }
+
+      .markdown-body {
+        box-sizing: border-box;
+        max-width: 980px;
+        min-width: 200px;
+        padding: 45px;
+        margin: 0 auto;
+      }
     </style>
 
-    <div id="readme"></div>
+    <div id="readme" class="markdown-body"></div>
   </template>
 
   <script>