Update documentation and parallelise viability #85

Job	Run time
Build and test in release mode (ubuntu-latest, 3.12, gcc, 13)	1m 15s
Build and test in release mode (ubuntu-latest, 3.11, gcc, 13)	58s
Build and test in release mode (ubuntu-latest, 3.13, gcc, 13)	1m 9s
Build and test in release mode (macos-latest, 3.12, gcc, 13)	1m 13s
Build and test in debug mode (ubuntu-latest, 3.11, gcc, 14)	1m 23s
Build and test in release mode (macos-latest, 3.13, gcc, 13)	1m 26s
Build and test in release mode (macos-latest, 3.11, gcc, 13)	1m 24s
Build and test in debug mode (ubuntu-latest, 3.13, gcc, 14)	1m 26s
Build and test in debug mode (ubuntu-latest, 3.11, gcc, 13)	1m 45s
Build and test in debug mode (macos-latest, 3.11, gcc, 14)	1m 22s
Build and test in debug mode (macos-latest, 3.12, gcc, 14)	1m 1s
Build and test in debug mode (ubuntu-latest, 3.13, gcc, 13)	1m 13s
Build and test in debug mode (ubuntu-latest, 3.12, gcc, 13)	2m 5s
Build and test in debug mode (macos-latest, 3.12, gcc, 13)	1m 19s
Build and test in debug mode (ubuntu-latest, 3.12, gcc, 14)	1m 15s
Build and test in debug mode (macos-latest, 3.13, gcc, 14)	1m 22s
Build and test in debug mode (macos-latest, 3.13, gcc, 13)	1m 11s
Build and test in debug mode (macos-latest, 3.11, gcc, 13)	1m 12s
	23m 59s

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