fix: update Node version requirement in package.json and enhance README for clarity

Author: thetarnav

package.json

@@ -55,6 +55,6 @@
   ],
   "packageManager": "pnpm@10.9.0",
   "engines": {
-    "node": ">=22.0.0"
+    "node": ">=20.6.0"
   }
 }

readme.md

@@ -1,6 +1,8 @@
 # Solid Register
 
-Node loader for compiling JSX/TSX files using Solid's compiler.
+Node loader for compiling JSX/TSX files using Solid's compiler. Uses [Node's Module Customization Hooks](https://nodejs.org/api/module.html#customization-hooks) to register the loader for `.jsx` and `.tsx` files.
+
+Requires Node `>=20.6.0`.
 
 ## Usage
 
@@ -24,6 +26,11 @@ Also requires for the DOM api to be mocked with `jsdom` or similar.
 node --conditions=browser --import=solid-register/client ./index.tsx
 ```
 
+## TypeScript
+
+This loader only handles the compilation of `.jsx`/`.tsx` files.\
+For `.ts` files you can use [`--experimental-strip-types`](https://nodejs.org/docs/v22.15.0/api/typescript.html#type-stripping), [`tsx`](https://github.com/privatenumber/tsx) or [`ts-node`](https://www.npmjs.com/package/ts-node).
+
 ## Example
 
 See the [tests](./tests) folder for a client/ssr code example\