test: add commonmark test

Felix Boerner

05.49.2024 e43304ae211259075e89db8b095e8d87ee148a32

 tests/exampleSiteWithImage/budget.desktop.json

@@ -4,10 +4,10 @@
            "total": 9
        },
        "transferSize": {
            "total": 323584
            "total": 324608
        },
        "thirdParty": {
            "requests": 4
            "requests": 5
        },
        "score": {
            "bestpractice": 93,