Update demo content (#830)

Luiz F. A. de Prá

13.51.2023 c3df12d0bbc2dda164df904f6a487580a82da746

 exampleSite/content/posts/external-post.md

@@ -1,15 +1,10 @@
+++
author = "Hugo Authors"
date = "2019-03-04"
authors = ["Lone Coder"]
date = "2023-07-06"
title = "External Page: Hugo Coder Wiki"
slug = "hugo-coder-wiki"
tags = [
    "hugo",
    "development",
    "themes"
]
categories = [
    "Development",
    "hugo"
]
externalLink = "https://github.com/luizdepra/hugo-coder/wiki"
+++