The title is embedded in the page

[TimMensch]

It seems wrong to force the title to be embedded as an <h1>, but that's what happens:

https://github.com/ericclemmons/mdx-site/blob/8e67f229e610559d5f6cd26863c3422ccc97c2ba/src/utils/renderPage.tsx#L36

Need to just include the Markdown that I actually add.