Merge pull request #522 from m1handr/patch-1

docs: add Elysia Prometheus to community plugins

Author: fecony

docs/plugins/overview.md

@@ -112,6 +112,7 @@ This is to ensure developers end up with a performant web server they intend to
 -   [Elysiajs Helmet](https://www.npmjs.com/package/elysiajs-helmet) - a comprehensive security middleware for Elysia.js applications that helps secure your apps by setting various HTTP headers.
 -   [Decorators for Elysia.js](https://github.com/Ateeb-Khan-97/better-elysia) - seamlessly develop and integrate APIs, Websocket and Streaming APIs with this small library.
 -   [Elysia Protobuf](https://github.com/ilyhalight/elysia-protobuf) - support protobuf for Elysia.
+-   [Elysia Prometheus](https://github.com/m1handr/elysia-prometheus) - Elysia plugin for exposing HTTP metrics for Prometheus.
 
 ## Complementary projects:
 -   [prismabox](https://github.com/m1212e/prismabox) - Generator for typebox schemes based on your database models, works well with elysia