Add description to other layouts

- helps adding description to sub-sections,
  search, terms, archive pages

layouts/_default/terms.html

@@ -3,6 +3,11 @@
 {{- if .Title }}
 <header class="page-header">
     <h1>{{ .Title }}</h1>
+    {{- if .Description }}
+    <div class="post-description">
+        {{ .Description }}
+    </div>
+    {{- end }}
 </header>
 {{- end }}
 
@@ -19,4 +24,4 @@
     {{- end }}
 </ul>
 
-{{ end  }}{{/* end main */}}
+{{ end  }}{{/* end main */}}