restore demo builds (#3781)

Author: acao

examples/cm6-graphql-parcel/package.json

@@ -7,7 +7,8 @@
   "private": true,
   "scripts": {
     "start": "parcel src/index.html -p 8080",
-    "build": "parcel build src/index.html --public-url /"
+    "build": "parcel build src/index.html --public-url /",
+    "build-demo": "yarn build && mkdirp ../../packages/graphiql/cm6 && cp -r dist ../../packages/graphiql/cm6/"
   },
   "browserslist": {
     "production": [

examples/monaco-graphql-webpack/package.json

@@ -6,7 +6,8 @@
   "description": "A simple monaco example with webpack and typescript",
   "scripts": {
     "build": "cross-env NODE_ENV=production webpack-cli",
-    "start": "cross-env NODE_ENV=development webpack-cli serve"
+    "start": "cross-env NODE_ENV=development webpack-cli serve",
+    "build-demo": "yarn build && mkdirp ../../packages/graphiql/monaco && cp -r dist/* ../../packages/graphiql/monaco/"
   },
   "dependencies": {
     "graphql": "^16.9.0",