Merge pull request #31 from hawkeye116477/master

Fixes for demo site

layouts/_default/single.html

                     <li class="list-inline-item">{{ .Params.author }}</li>
                     <li class="list-inline-item">{{ dateFormat "Monday, Jan 2, 2006" .Date }}</li>
                 </ul>
-                <img class="img-fluid mb-50" src="{{ .Params.image | absURL }}" alt="blog-image">
+                {{ with .Params.image }}<img class="img-fluid mb-50" src="{{ . | absURL }}" alt="blog-image">{{ end }}
             </div>
             <div class="col-lg-8 offset-lg-2">
                 <div class="post-single-content">

layouts/partials/blog.html

             {{ end }}
 
             <div class="all-post text-center col-lg-12">
-                <a class="btn btn-main" href="/blog">{{ i18n "viewAllPost" }}</a>
+                <a class="btn btn-main" href="{{ if .Site.GetPage "/blog" }}/blog{{ else }}/posts{{end}}">{{ i18n "viewAllPost" }}</a>
             </div>
         </div>
     </div>