several fixes and optimizations

layouts/_default/single.html

@@ -1,6 +1,5 @@
 {{ define "main" }}
 
-<!-- blog details -->
 <section class="section-sm">
   <div class="container">
     <div class="row">
@@ -25,7 +24,6 @@
 
             </ul>
           </div>
-          <!-- border -->
           <div class="col-12 my-4">
             <div class="border-bottom"></div>
           </div>
@@ -34,7 +32,6 @@
   					{{ .TableOfContents }}
   				</aside>
           </div>
-          <!-- blog contect -->
           <div class="col-12 mb-5 content">
             {{ .Content }}
           </div>
@@ -44,6 +41,5 @@
     </div>
   </div>
 </section>
-<!-- /blog details -->
 
 {{ end }}