Minor adjustments to doc and warning #387

Job	Run time
CI Sanity Check	32s
Attach pull request number	0s
Initial JDK 17 Build	11m 46s
Calculate Test Jobs	13s
JVM Tests - JDK 17	11m 8s
JVM Tests - JDK 21	8m 47s
JVM Tests - JDK 17 Windows	4m 51s
Kubernetes Tests - JDK ${{ matrix.java.name }}	0s
Gradle Tests - JDK ${{ matrix.java.name }}	0s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Maven Tests - JDK ${{ matrix.java.name }}	0s
Quickstarts Compilation - JDK 17	6m 22s
Native Tests - Cache	7m 47s
MicroProfile TCKs Tests	0s
Native Tests - gRPC	4m 8s
Native Tests - Virtual Thread - ${{ matrix.category }}	0s
Upload build stats to collector	0s
Build report	28s
	56m 2s

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