Define custom domain for GitHub Pages deployment

[kabilar]

https://dandi.github.io/example-notebooks/

See discussion here.

cc @bendichter

[bendichter]

@kabilar this URL was set simply by activating Pages in the Settings of this repository. The default behavior (if the repo name is not [org].github.io) is to use the url http://[org].github.io/[repo]

The advantage of this for anyone who knows this convention they can clearly see from the url where the repo is. However, I would be fine with moving this either by assigning a custom domain, or by moving this entirely into the Hugo site generation, if that is possible.

[kabilar]

Hi @bendichter, this was previously using: https://www.dandiarchive.org/example-notebooks. See #93 (comment). That's why I was trying to figure this out.

I am fine with using https://dandi.github.io/example-notebooks/, Hugo, or notebooks.dandiarchive.org.

[kabilar]

For now, let's proceed with https://dandi.github.io/example-notebooks. Filed dandi/dandi-docs#171