add prepare script

package.json

@@ -1,6 +1,6 @@
 {
   "name": "simpl-schema",
-  "version": "0.0.0-development",
+  "version": "1.0.0",
   "description": "A schema validation package that supports direct validation of MongoDB update modifier objects.",
   "author": "Eric Dobbertin <[email protected]>",
   "license": "MIT",
@@ -22,10 +22,9 @@
   "browserslist": "> 0.5%, last 2 versions, Firefox ESR, not dead",
   "scripts": {
     "build": "rm -rf dist/** && babel package/lib --out-dir dist --ignore 'package/lib/**/*.tests.js,package/lib/testHelpers/*'",
-    "copyFiles": "cp ../README.md ./README.md && cp ../LICENSE ./LICENSE",
     "lint": "eslint .",
     "lintAndTest": "npm run lint && npm test",
-    "prepublishOnly": "npm run copyFiles && npm run build",
+    "prepare": "npm run build",
     "test": "mocha --require @babel/register --recursive \"package/lib/**/*.tests.js\"",
     "test:file": "mocha --require @babel/register --watch",
     "test:watch": "npm test -- --watch"