Add original_url element to posts

themes/lhs-retro/layouts/blog/single.html

@@ -16,8 +16,10 @@
       <img src="{{ $avatar.RelPermalink }}" alt="{{ .Params.author }}'s avatar">
     </td>
     <td>
-      <p><i>This is a post by <b>{{ .Params.author }}</b>.<br>Originally
-        posted <b>{{ .PublishDate | time.Format ":date_full" }}</b></i></p>
+      <p><i>This is a post by <b>{{ .Params.author }}</b>.<br>Posted <b>{{ .PublishDate | time.Format ":date_full" }}</b></i>
+        {{ if .Params.original_url }}<br>Originally posted at <a href="{{ .Params.original_url }}" rel="canonical">{{
+          .Params.original_url }}</a>{{ end }}
+      </p>
     </td>
   </tr>
 </table>

themes/lhs/archetypes/blog/index.md

@@ -4,6 +4,8 @@ subtitle: ""
 date: {{ .Date }}
 tags: []
 draft: true
-author:
+author: # Name to show on the post
 author_email: # used for Gravatar icon
+listing_image: # Image to use in the post list on the website
+original_url: # If cross-posted from a blog, link to the original.
 ---

themes/lhs/layouts/blog/single.html

@@ -17,8 +17,10 @@
   </figure>
   <div class="media-content">
     <div class="content">
-      <p class="is-size-5 is-italic">This is a post by <b>{{ .Params.author }}</b>.<br />Originally
-        posted <b>{{ .PublishDate | time.Format ":date_full" }}</b></p>
+      <p class="is-size-6 is-italic">This is a post by <b>{{ .Params.author }}</b>.<br />
+        Posted <b>{{ .PublishDate | time.Format ":date_full" }}</b>
+        {{ if .Params.original_url }}<br/>Originally posted at <a href="{{ .Params.original_url }}" rel="canonical">{{ .Params.original_url }}</a>{{ end }}
+      </p>
     </div>
   </div>
 </article>