[FIX] Fix tags output in :post task

Author: coding46

Rakefile

@@ -65,7 +65,7 @@ task :post do
     post.puts "title: \"#{title.gsub(/-/,' ')}\""
     post.puts 'description: ""'
     post.puts "category: "
-    post.puts "tags: []"
+    post.puts "tags: #{tags}"
     post.puts "---"
     post.puts "{% include JB/setup %}"
   end