Single layout show date rage if supplied, fix figcaption right alignment

assets/css/main.css

@@ -147,7 +147,7 @@ figure {
     }
 
     &.right {
-      text-align: left;
+      text-align: right;
     }
   }
 }

layouts/_default/single.html

@@ -5,7 +5,11 @@
   <div class="post-meta">
     {{ if .Params.Date }}
       <span class="post-date">
-        {{ .Date.Format "01-02-2006" }} {{ if $.Site.Params.showLastUpdated }}[{{or $.Site.Params.updatedDatePrefix "Updated"}}: {{ .Lastmod.Format "2006-01-02" }}]{{ end }}
+        {{ with .Params.daterange }}
+          {{ . }}
+        {{ else }}
+          {{ .Date.Format "01-02-2006" }} {{ if $.Site.Params.showLastUpdated }}[{{or $.Site.Params.updatedDatePrefix "Updated"}}: {{ .Lastmod.Format "2006-01-02" }}]{{ end }}
+        {{ end }}
       </span>
     {{ end }}
     {{ with .Params.Author }}