Website small tweaks and improvements and doc syntax fixes #229

Job	Run time
Github \| Docker	57m 47s
Github (ubuntu, mpi, debug, true)	33m 7s
Github (ubuntu, mpi, debug, false)	52m 23s
Github (ubuntu, mpi, no-debug, true)	56m 58s
Github (ubuntu, mpi, no-debug, false)	58m 18s
Github (ubuntu, no-mpi, debug, true)	28m 47s
Github (ubuntu, no-mpi, debug, false)	19m 42s
Github (ubuntu, no-mpi, no-debug, true)	34m 10s
Github (ubuntu, no-mpi, no-debug, false)	19m 2s
Github (macos, mpi, debug, false)	59m 54s
Georgia Tech \| Phoenix (NVHPC) (cpu)	45m 1s
Github (macos, mpi, no-debug, false)	46m 28s
Georgia Tech \| Phoenix (NVHPC) (gpu)	30m 14s
Github (macos, no-mpi, debug, false)	12m 52s
Github (macos, no-mpi, no-debug, false)	25m 49s
	9h 40m 32s

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