Clean up the main page, and remove useless SG logs #437

Job	Run time
setup	2s
generate-example (lode-linear)	3m 30s
generate-example (roy-gch)	3m 20s
generate-example (dos-align)	6m 2s
generate-example (lpr)	3m 34s
generate-example (batch-cp2k)	1m 53s
generate-example (gaas-map)	4m 2s
generate-example (pi-metad)	4m 17s
generate-example (sample-selection)	3m 30s
generate-example (thermostats)	3m 3s
generate-example (heat-capacity)	2m 23s
generate-example (periodic-hamiltonian)	7m 35s
generate-example (path-integrals)	1m 48s
build-and-publish	41s
	45m 40s

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