Return successes from update command

slices/micropub/commands/posts/update.rb

@@ -24,6 +24,8 @@ module Micropub
             attrs_to_replace[:content] = markdown.call(content: content) if content
 
             post_repo.update(post.id, attrs_to_replace)
+
+            Success()
           end
 
           if params.key? :add
@@ -45,6 +47,8 @@ module Micropub
 
             post_repo.tag_post(post_id: post.id, tags: tags) if tags && !tags.empty?
             add_syndication_source.call(post.id, "", syndication) if syndication && !syndication.empty?
+
+            Success()
           end
 
           if params.key? :delete
@@ -67,6 +71,8 @@ module Micropub
 
               post_repo.update(post.id, attrs) unless attrs.empty?
             end
+
+            Success()
           end
         end
       end