Released the public page with early signups

Pine is getting closer to release.
It felt like a good time to release an early signup page.
After two years of work, this is the very first thing that's open to the public.

The public site alone took some time to develop.
Aside from the signup form and the homepage I wrote two blog posts and added a changelog.

Check out the introduction blog post here https://pine.io/blog/hello-world/