做了初步的SEO

harp.json

@@ -1,11 +1,11 @@
 {
   "globals": {
     "title": "Angular",
-    "description": "Angular is a development platform for building mobile and desktop web applications",
-    "keywords": "Angular, AngularJS, AngularDart, Javscript, Dart, Framework, JavaScript MVC, Google",
-    "siteURL": "http://angular.io",
-    "jsLatest": "2.0.0-beta.02",
-    "dartLatest": "2.0.0-beta.02",
+    "description": "Angular是一个用于构建移动应用和桌面Web应用的开发平台",
+    "keywords": "Angular, 中文, 中文版, AngularJS, AngularDart, Javscript, Dart, Framework, JavaScript MVC, Google",
+    "siteURL": "https://angular.cn",
+    "jsLatest": "2.0.0-RC.4",
+    "dartLatest": "2.0.0-RC.4",
 
     "bios": {
       "misko": {

public/docs/_data.json

@@ -1,6 +1,6 @@
 {
   "index": {
-    "title": "Angular文档",
+    "title": "Angular中文文档",
     "subtitle": "选择Angular的语种",
     "layout": "../_layout"
   }

public/docs/ts/latest/_data.json

@@ -1,7 +1,7 @@
 {
   "index": {
     "icon": "home",
-    "title": "Angular文档",
+    "title": "Angular中文文档",
     "menuTitle": "文档首页",
     "banner": "欢迎来到 <b>Angular in TypeScript</b>! 当前的Angular版本是 <b>rc.4</b>。请参考<a href='https://github.com/angular/angular/blob/master/CHANGELOG.md' target='_blank'>变更记录</a>、最新功能、BUG修复和重大的破坏性更改。"
   },