Halcyon for Obsidian

Hello! 

I've "ported" Halcyon over for use in my favourite note editor, [Obsidian](<https://obsidian.md/>).
You can find the repo [here](<https://github.com/dbarenholz/halcyon-obsidian>).

Two things:
1. Did I attribute enough that the original theme/colour scheme is yours?
2. If you want to include a link on the Halcyon site to the Obsidian variant, please do so! :)