update bilingual

lib/views/admin/markdown.html

@@ -44,7 +44,7 @@
 
         <div class="form-group">
           <label for="markdownSetting[markdown:isEnabledLinebreaks]" class="col-xs-4 control-label">
-            Line Break を有効にする
+            {{ t('markdown_setting.validate Line Break') }}
           </label>
           <div class="col-xs-5">
             <div class="btn-group btn-toggle" data-toggle="buttons">