build: Add README to generated NPM package

Author: pojntfx

ts/package.json

@@ -1,13 +1,13 @@
 {
   "name": "@pojntfx/panrpc",
-  "version": "0.7.1",
+  "version": "0.7.2",
   "description": "Language-, transport- and serialization-agnostic RPC framework with remote closure support that allows exposing and calling functions on both clients and servers.",
   "source": "index.ts",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
   "type": "module",
   "scripts": {
-    "build": "eslint . && tsc --emitDeclarationOnly && typedoc --excludePrivate --out typedoc index.ts && bun build --minify --splitting --target browser --outdir=dist ./index.ts"
+    "build": "eslint . && tsc --emitDeclarationOnly && typedoc --excludePrivate --out typedoc index.ts && bun build --minify --splitting --target browser --outdir=dist ./index.ts && cp ../README.md ./dist"
   },
   "repository": {
     "type": "git",