Update archive-single.html

Author: zyaocoder

_includes/archive-single.html

@@ -22,7 +22,7 @@
       border-collapse:separate;
       margin-right:auto;
       margin-left:auto;
-      margin-bottom:2em;
+      margin-bottom:0.5em;
         }
     .paperimage {
       padding-right:2.5%;