add simple data examples for welcome slides

_freeze/site_libs/core-js-2.5.3/LICENSE

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+Copyright (c) 2014-2017 Denis Pushkarev
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

_freeze/site_libs/core-js-2.5.3/package.json

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+{
+  "devDependencies": {
+    "@babel/cli": "^7.7.7",
+    "@babel/core": "^7.7.7",
+    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.7.4",
+    "@babel/plugin-proposal-optional-catch-binding": "^7.7.4",
+    "@babel/plugin-proposal-optional-chaining": "^7.7.5",
+    "@babel/plugin-transform-arrow-functions": "^7.7.4",
+    "@babel/plugin-transform-block-scoped-functions": "^7.7.4",
+    "@babel/plugin-transform-block-scoping": "^7.7.4",
+    "@babel/plugin-transform-classes": "^7.7.4",
+    "@babel/plugin-transform-computed-properties": "^7.7.4",
+    "@babel/plugin-transform-destructuring": "^7.7.4",
+    "@babel/plugin-transform-exponentiation-operator": "^7.7.4",
+    "@babel/plugin-transform-literals": "^7.7.4",
+    "@babel/plugin-transform-member-expression-literals": "^7.7.4",
+    "@babel/plugin-transform-parameters": "^7.7.7",
+    "@babel/plugin-transform-property-literals": "^7.7.4",
+    "@babel/plugin-transform-shorthand-properties": "^7.7.4",
+    "@babel/plugin-transform-spread": "^7.7.4",
+    "@babel/plugin-transform-template-literals": "^7.7.4",
+    "babel-loader": "^8.0.6",
+    "babel-plugin-transform-es2015-modules-simple-commonjs": "~0.3.0",
+    "babel-plugin-transform-for-of-as-array": "^1.1.1",
+    "es-observable": "git+https://github.com/tc39/proposal-observable.git#bf4d87144b6189e793593868e3c022eb51a7d292",
+    "eslint": "^6.8.0",
+    "eslint-import-resolver-webpack": "^0.12.0",
+    "eslint-plugin-import": "^2.19.1",
+    "eslint-plugin-node": "^10.0.0",
+    "eslint-plugin-optimize-regex": "^1.1.7",
+    "eslint-plugin-qunit": "^4.0.0",
+    "eslint-plugin-sonarjs": "^0.5.0",
+    "eslint-plugin-unicorn": "^15.0.0",
+    "grunt": "^1.0.4",
+    "grunt-cli": "^1.3.2",
+    "grunt-contrib-clean": "^2.0.0",
+    "grunt-contrib-copy": "^1.0.0",
+    "grunt-contrib-uglify": "^4.0.1",
+    "grunt-karma": "^3.0.2",
+    "grunt-webpack": "^3.1.3",
+    "karma": "^4.4.1",
+    "karma-chrome-launcher": "^3.1.0",
+    "karma-phantomjs-launcher": "~1.0.4",
+    "karma-qunit": "^4.0.0",
+    "lerna": "^3.19.0",
+    "moon-unit": "^0.2.2",
+    "phantomjs-prebuilt": "~2.1.16",
+    "promises-aplus-tests": "^2.1.2",
+    "puppeteer": "~2.0.0",
+    "qunit": "~2.9.3",
+    "webpack": "^4.41.4"
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/zloirock/core-js.git"
+  },
+  "scripts": {
+    "bootstrap": "lerna bootstrap --no-ci",
+    "build": "grunt clean copy && npm run bootstrap && npm run build-compat && grunt bundle uglify",
+    "build-compat": "npm run build-compat-data && npm run build-compat-entries && npm run build-compat-modules-by-versions",
+    "build-compat-data": "node packages/core-js-compat/src/build-data",
+    "build-compat-entries": "node packages/core-js-compat/src/build-entries",
+    "build-compat-modules-by-versions": "node packages/core-js-compat/src/build-modules-by-versions",
+    "lint": "grunt clean copy && npm run bootstrap && npm run build-compat && eslint ./",
+    "unit-tests": "grunt clean copy && npm run bootstrap && npm run build-compat && grunt bundle webpack:helpers webpack:tests karma:tests",
+    "unit-tests-pure": "grunt clean copy && npm run build-compat && grunt webpack:helpers webpack:pure karma:pure",
+    "bundle-promises-tests": "grunt webpack:promises-aplus-tests",
+    "promises-tests": "promises-aplus-tests tests/promises-aplus/adapter --timeout 1000",
+    "observables-tests": "babel node_modules/es-observable/test/ -d tests/bundles/observables-tests/ && node tests/observables/adapter && node tests/observables/adapter-pure",
+    "commonjs-tests": "node tests/commonjs",
+    "commonjs-entries-content": "node tests/commonjs-entries-content",
+    "targets-parser-tests": "node tests/targets-parser",
+    "test": "grunt clean copy && npm run bootstrap && npm run build-compat && eslint ./ && grunt webpack:helpers webpack:tests bundle uglify karma:tests webpack:helpers webpack:pure karma:pure && npm run promises-tests && npm run observables-tests && npm run commonjs-tests && npm run commonjs-entries-content && npm run targets-parser-tests"
+  },
+  "engines": {
+    "node": ">=8.9.0"
+  }
+}