Move gh-pages to allow repository GitHub Pages preview

[backlands]

Hey @zenorocha,

I just realized that we will need to make the draculatheme.com/gh-pages/ URN available to the repository so that I can configure the GitHub Pages on the repository. My suggestion for a solution is to move /src/content/gh-pages/ to /src/content/ghpages/ or /src/content/gh-pages-theme/.

I am open to other suggestions, however the URN directory for the main site cannot be the same as the repository.

[backlands]

@zenorocha new path looks good for the page, the link on the main page just needs to be updated! Thanks again for bringing this into the org, I will get working on some improvements to match this up even more with the theme!