Updated README.md syntax examples #235

Job	Run time
run-test-cases (ubuntu-latest, sudo apt-get install gdb, true, make test-cases, false)	30s
run-test-cases (ubuntu-latest, sudo apt-get install gdb, true, make test-cases-gdb, true)	1m 2s
run-test-cases (windows-latest, true, make test-cases, false)	19s
run-test-cases (windows-latest, true, make test-cases-gdb, true)	35s
run-test-cases (macos-latest, false, make test-cases, false)	9s
run-test-cases (macos-latest, false, make test-cases-gdb, true)	4s
run-test-integrations (ubuntu-latest, sudo apt-get install gdb, true, make test-integrations, false)	10s
run-test-integrations (ubuntu-latest, sudo apt-get install gdb, true, make test-integrations-gdb,...	31s
run-test-integrations (windows-latest, true, make test-integrations, false)	28s
run-test-integrations (windows-latest, true, make test-integrations-gdb, true)	35s
run-test-integrations (macos-latest, false, make test-integrations, false)	8s
run-test-integrations (macos-latest, false, make test-integrations-gdb, true)	4s
run-test-valgrind (ubuntu-latest, sudo apt-get install valgrind, make tests-valgrind)	24s
	4m 59s

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