Add the feature 'ReadMore Tag' mentioned in issue #3

_config.yml

@@ -39,9 +39,6 @@ fb_app_id:
 enabled_disqus : true
 disqus_url : 'https://morgan-hexo-theme.disqus.com/embed.js'
 
-#page setting - index excerpt (per article display length)
-excerpt_length : 400
-
 #page setting - slogan
 slogan : [ "Hallo, dit is mijn blog", "嗨，這是我的博客!","안녕하세요, 제 블로그입니다.", "Hi, This is my blog!", "こんにちは、私のブログへようこそ!", "مرحبا، مرحبا بك في مدونتي" ]
 slogan_random_display : false

layout/index.ejs

@@ -9,11 +9,7 @@
             <!-- Articles -->
             <%  for(var i = 0;i < page.posts.data.length;i++){ 
                 var post = page.posts.data[i];
-                var content = "";
-                if(post.content.length > theme.excerpt_length){
-                    content = post.content.toString();
-                    content = content.substr(0,theme.excerpt_length).concat('...').toString();
-                }
+                var content = post.excerpt;
                 var date = new Date(post.date);
             %>
             <div class="ts horizontally fitted basic segment">