Update README.md

Author: just-shadyumbrella

README.md

@@ -1,6 +1,6 @@
 # Vite + Solid ~ Rollup + Fastify
 
-A simple example to develop front-end app with Vite and SolidJS as well as Fastify backend support through Vite's `proxy` config, and bundled with Rollup.
+A simple example to develop front-end app with Vite and SolidJS as well as Fastify backend support through Vite's [`server.proxy`](https://vite.dev/config/server-options#server-proxy) config, and bundled with Rollup.
 
 ## Usage