Add dbp-matomo usage documentation and build script entry

packages/matomo/README.md

@@ -13,6 +13,13 @@ npm i @dbp-toolkit/matomo
 <script type="module" src="node_modules/@dbp-toolkit/matomo/dist/dbp-matomo.js"></script>
 ```
 
+Or directly via CDN:
+
+```html
+<dbp-matomo></dbp-matomo>
+<script type="module" src="https://unpkg.com/@dbp-toolkit/matomo@0.2.4/dist/dbp-matomo.js"></script>
+```
+
 ## Attributes
 
 - `endpoint` (required): set to your *Matomo* server

packages/matomo/package.json

 {
   "name": "@dbp-toolkit/matomo",
   "homepage": "https://gitlab.tugraz.at/dbp/web-components/toolkit/-/tree/master/packages/matomo",
-  "version": "0.2.3",
+  "version": "0.2.4",
   "main": "src/index.js",
   "license": "LGPL-2.1-or-later",
   "repository": {
@@ -41,6 +41,7 @@
   },
   "scripts": {
     "clean": "rm dist/*",
+    "build": "npm run build-local",
     "build-local": "rollup -c",
     "build-dev": "rollup -c --environment BUILD:development",
     "build-prod": "rollup -c --environment BUILD:production",