Rename the repo

[jtiala]

Should we rename the repo? I mean, the url that is currently the name isn't even working, it should be solita.github.io. But since we are using a custom domain dev.solita.fi, this repo doesn't need to be named with an url. So we could just rename this to solita-dev-blog or something.

More about GH Pages and domains: https://docs.github.com/en/pages/getting-started-with-github-pages/about-github-pages#types-of-github-pages-sites