use terser and clean-css directly

create a sourcemap as well by default

node_modules/whatwg-url/README.md

@@ -4,7 +4,7 @@ whatwg-url is a full implementation of the WHATWG [URL Standard](https://url.spe
 
 ## Specification conformance
 
-whatwg-url is currently up to date with the URL spec up to commit [6ef17eb](https://github.com/whatwg/url/commit/6ef17ebe1220a7e7c0cfff0785017502ee18808b).
+whatwg-url is currently up to date with the URL spec up to commit [7ae1c69](https://github.com/whatwg/url/commit/7ae1c691c96f0d82fafa24c33aa1e8df9ffbf2bc).
 
 For `file:` URLs, whose [origin is left unspecified](https://url.spec.whatwg.org/#concept-url-origin), whatwg-url chooses to use a new opaque origin (which serializes to `"null"`).
 
@@ -89,3 +89,10 @@ To build and run the live viewer:
     npm run build-live-viewer
 
 Serve the contents of the `live-viewer` directory using any web server.
+
+## Supporting whatwg-url
+
+The jsdom project (including whatwg-url) is a community-driven project maintained by a team of [volunteers](https://github.com/orgs/jsdom/people). You could support us by:
+
+- [Getting professional support for whatwg-url](https://tidelift.com/subscription/pkg/npm-whatwg-url?utm_source=npm-whatwg-url&utm_medium=referral&utm_campaign=readme) as part of a Tidelift subscription. Tidelift helps making open source sustainable for us while giving teams assurances for maintenance, licensing, and security.
+- Contributing directly to the project.