Add scalability article

src/data/roadmaps/system-design/content/109-load-balancers/index.md

@@ -20,6 +20,6 @@ Load balancers can be implemented with hardware (expensive) or with software suc
 
 To learn more, visit the following links:
 
+- [Scalability](https://cs.fyi/guide/scalability-for-dummies)
 - [NGINX Architecture](https://www.nginx.com/blog/inside-nginx-how-we-designed-for-performance-scale/)
 - [HAProxy Architecture Guide](http://www.haproxy.org/download/1.2/doc/architecture.txt)
-- [Scalability](https://web.archive.org/web/20220530193911/https://www.lecloud.net/post/7295452622/scalability-for-dummies-part-1-clones)