config.toml update to include new Goldmark default

[IllusiveMilkman]

Please include the following to config.toml under the Example Site.

[markup]
[markup.goldmark]
[markup.goldmark.renderer]
unsafe = true

Since Hugo 0.6.0 the default markdown now requires this to render HTML tags.

As an example, look at the current Markdown syntax guide for LoveIt:
https://themes.gohugo.io//theme/LoveIt/post/markdown-syntax/

At present HTML is rendered with <!-- raw HTML omitted --> The above setting will rectify it, but ultimately it's your decision to include it or not.

[Programazing]

Added in Pull Request #29