Pre-release changes for 4.0.0

Author: mrpiotr-dev

README.md

@@ -30,7 +30,7 @@ npm install handsontable @handsontable/angular
 You can load it directly from [jsDelivr](//jsdelivr.com/package/npm/@handsontable/angular) as well.
 ```html
 <script src="https://cdn.jsdelivr.net/npm/handsontable/dist/handsontable.full.min.js"></script>
-<script src="https://cdn.jsdelivr.net/npm/@handsontable/angular/dist/bundles/handsontable-angular.umd.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/@handsontable/angular/bundles/handsontable-angular.umd.min.js"></script>
 
 <link href="https://cdn.jsdelivr.net/npm/handsontable/dist/handsontable.full.min.css" rel="stylesheet">
 ```

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@handsontable/angular",
-  "version": "3.0.0",
+  "version": "4.0.0",
   "description": "Best Data Grid for Angular with Spreadsheet Look and Feel.",
   "author": "Handsoncode <hello@handsoncode.net> (https://handsoncode.net)",
   "license": "MIT",