Mention server lifecycle in webserver SE docs. Fix toc. #531

Job	Run time
build	5m 33s
shellcheck	3m 8s
copyright	3m 26s
checkstyle	3m 48s
tests/tck-${{ matrix.moduleSet }}	0s
tests/native-image-${{ matrix.module }}-${{ matrix.platform }}	0s
tests/${{ matrix.moduleSet }}	0s
spotbugs/${{ matrix.moduleSet }}	0s
archetypes/${{ matrix.group }}-${{ matrix.packaging }}	0s
docs	0s
examples/${{ matrix.platform }}	0s
javadoc	0s
archetypes/legacy	0s
tests/packaging-${{ matrix.packaging }}-${{ matrix.platform }}	0s
quickstarts/${{ matrix.platform }}	0s
tests/results	0s
gate	0s
	15m 55s

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