Support facebook SDK

[mrjohannchang]

facebook_sdk:
  enable: true
  app_id: <app_id>
  fb_admin: <user_id>
  like_button: true
  webmaster: true

[mrjohannchang]

With Facebook SDK, we can add Like Button, WebMaster and Insights. See my blog for Like Button demo (next to comment count).

[iissnan]

👍 Thanks!

[DanteTeo]

我enable之后，share到facebook的post没有thumbnail，而且点击后还将我带去ww38.yoursite.com。＝＝

[jackypan1989]

@DanteTeo 你要更改 site 的 _config.yml

[caili-zhang]

fb_admin: <user_id> 请问这个ID应该填什么呢，我注册了FB的开发者，只看到app id