Markdown in Speaker Notes Has Output Issues

[timnolte]

When trying to use Markdown in the speaker notes line breaks and lists don't work. Example Markdown:

## Heading
- List Item 1
- List Item 2
- List Item 3

Ends up looking like:

Heading - List Item 1- List Item 2- List Item 3

[JonTheNiceGuy]

I think speaker notes need to use *'s instead of -'s? Like this:

## Heading
* List Item
* List Item

I did notice with my recent slide deck (https://jon.sprig.gs/blog/post/slideshow/automation-in-an-infrastructure-as-code-world) on my 13th slide, I had these notes:

### Context
* **About:** Azure native & Computed
* **Terminology:** Template file and Parameters file - Deployment (Resource, Parameters, Variables and Outputs)
* **File Type:** JSON formatted.
* **Run:** Azure cli tool, API or Web console (you have to go looking for it! - Search for "Deploy a Custom Template")

### Pro's
* ARM is native to Azure. It generally tends to track the capabilities of the platform quite closely.
* It's (relatively) fast
* It's easy to point-and-click to create your ARM templates (go into the Resource Group, go into "Automation" and download the template. Customize). 

### Con's
* It's a monolithic file.
* It can't deliver a Resource Group. One must be created in advance!
* You can't delete a Deployment in one go (the result of running the Template) - you have to remove the RG (which might have more content than was in your deployment).

This looked like this, when rendered:

I suspect, however, that this is part of the reveal.js code, not part of the presenter wrap.