fix reference

fix ../stylesheets/images/bg-ico.png reference to ../style/images/bg-ico.png

book/index.html

@@ -21,7 +21,7 @@ description: "分享正在看和看过想看的一些书籍"
 					<div class="item-label">
 						<div class="item-title"><a href="{{ posts.url }}">{{ posts.title }}</a></div>
 						<div class="item-meta clearfix">
-						<div class="item-meta-ico bg-ico-book" style="background: url('../stylesheets/images/bg-ico.png') no-repeat;background-size: 40px auto;"></div>
+						<div class="item-meta-ico bg-ico-book" style="background: url('../style/images/bg-ico.png') no-repeat;background-size: 40px auto;"></div>
               <div class="item-meta-cat">
 				 <a href="category/thoughts/index.html" title="访问 {{  posts.category }}"  data-hover="{{ posts.category }}">{{ posts.category }}</a>
 				 <a href="category/thoughts/index.html" title="访问 {{ posts.date | date: "%Y"}}" data-hover="{{ posts.date | date: "%F %H:%M:%S "}}">{{ posts.date | date: "%F %H:%M:%S "}}</a></div>
@@ -33,4 +33,4 @@ description: "分享正在看和看过想看的一些书籍"
        {% endfor %}
 	</div>
 	</div>
-  {% include pagination.html %}
\ No newline at end of file
+  {% include pagination.html %}