docs: copy edits

content/notes/showcase.md

@@ -5,7 +5,8 @@ title: "Showcase"
 Want to see what Quartz can do? Here are some cool community gardens :)
 
 - [Quartz Documentation (this site!)](https://quartz.jzhao.xyz/)
-- [Jacky Zhao's Garden](https://garden.jzhao.xyz/)
+- [Jacky Zhao's Garden](https://jzhao.xyz/)
+- [Scaling Synthesis - A hypertext research notebook](https://scalingsynthesis.com/)
 - [AWAGMI Intern Notes](https://notes.awagmi.xyz/)
 - [Shihyu's PKM](https://shihyuho.github.io/pkm/)
 - [Chloe's Garden](https://garden.chloeabrasada.online/)