MINOR: Fix documents in Getting Started #25343

Job	Run time
build / Configure Workflow	4s
build / Compile and Check (Merge Ref)	4m 1s
build / Load Test Catalog	15s
build / JUnit tests Java 17 (flaky)	11m 18s
build / JUnit tests Java 25 (flaky)	10m 32s
build / JUnit tests Java 17	2h 5m 14s
build / JUnit tests Java 25	2h 1m 31s
build / JUnit tests Java 17 (new)	9m 30s
build / JUnit tests Java 25 (new)	8m 53s
build / CI checks completed	4s
build / Collate Test Catalog	23s
build / Update Test Catalog	0s
	4h 51m 45s

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