Update README.md

Author: gvdongen

README.md

@@ -37,6 +37,10 @@ restate.endpoint()
 
 ## Using the SDK
 
+Prerequisites:
+- [NodeJS](https://nodejs.org/en/) >= v18.17.1 or [Bun](https://bun.sh/docs/installation) or [Deno](https://deno.land/#installation)
+- [npm CLI](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm) >= 9.6.7
+
 To use this SDK, add the dependency to your project:
 ```shell
 npm install @restatedev/restate-sdk