Update share buttons in home page

themes/navy/layout/partial/head.swig

@@ -33,7 +33,6 @@
   <!-- endbuild -->
   <link href="https://fonts.googleapis.com/css?family=Lato:300,400,700" rel="stylesheet" type="text/css">
   <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css">
   <!-- RSS -->
   {{ feed_tag('atom.xml') }}
   <!-- Open Graph -->
@@ -43,6 +42,4 @@
   }) }}
   <!-- Google Analytics -->
   {{ partial('google_analytics') }}
-  <!-- Github Button -->
-  <script async defer src="https://buttons.github.io/buttons.js"></script>
 </head>

themes/navy/layout/partial/share.swig

@@ -1,11 +1,10 @@
-<!-- GitHub Star -->
-<a class="github-button" href="https://github.com/hexojs/hexo" data-count-href="/hexojs/hexo/stargazers" data-count-api="/repos/hexojs/hexo#stargazers_count" data-count-aria-label="# stargazers on GitHub" aria-label="Star hexojs/hexo on GitHub">Star</a>
+<!-- GitHub star -->
+<a class="github-button" href="https://github.com/hexojs/hexo" data-icon="octicon-star" data-show-count="true" aria-label="Star hexojs/hexo on GitHub">Star</a>
 <!-- GitHub fork -->
-<a class="github-button" href="https://github.com/hexojs/hexo/fork" data-count-href="/hexojs/hexo/network" data-count-api="/repos/hexojs/hexo#forks_count" data-count-aria-label="# forks on GitHub" aria-label="Fork hexojs/hexo on GitHub">Fork</a>
-<!-- Tweet button -->
-<a href="https://twitter.com/share" class="twitter-share-button" data-url="http://hexo.io/" data-text="Hexo - A fast, simple &amp; powerful blog framework powered by Node.js." data-hashtags="hexo,nodejs">Tweet</a>
+<a class="github-button" href="https://github.com/hexojs/hexo/fork" data-icon="octicon-repo-forked" data-show-count="true" aria-label="Fork hexojs/hexo on GitHub">Fork</a><!-- Tweet button -->
 <!-- Twitter follow button -->
-<a href="https://twitter.com/hexojs" class="twitter-follow-button" data-show-count="false">Follow @hexojs</a>
-<script>
-window.twttr=(function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],t=window.twttr||{};if(d.getElementById(id))return;js=d.createElement(s);js.id=id;js.src="https://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);t._e=[];t.ready=function(f){t._e.push(f);};return t;}(document,"script","twitter-wjs"));
-</script>
+<a href="https://twitter.com/hexojs" class="twitter-follow-button" data-show-count="true">Follow @hexojs</a>
+<!-- Github Button -->
+<script async defer src="https://buttons.github.io/buttons.js"></script>
+<!-- Twitter share button -->
+<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>