fix title wrap problem

_includes/block-grid.html

 <div class="block-grid">
-  <a href="{{ include.url }}" target="_blank">
+  <a href="{{ include.url }}" target="_blank" title="{{ include.title }}">
     <div class="grid-title">{{ include.title }}</div>
     <div class="grid-icon">
       <i class="{{ include.icon }}"></i>

_sass/content.scss

@@ -34,6 +34,9 @@
 .grid-title {
   display: block;
   color: #333;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
 }
 .grid-icon {
   display: block;