Update front-page docs #2899

Job	Run time
gnumake-clang-tidy-native (c++14, g++)	27s
target-avr (avr)	17s
gnumake-clang-tidy-native (c++14, clang++)	39s
target-avr (atmega2560)	1m 13s
msvc-msbuild (Debug)	1m 53s
msvc-msbuild (Release)	1m 18s
target-arm (am335x)	33s
target-arm (bcm2835_raspi_b)	40s
target-arm (lpc11c24)	43s
target-arm (nxp_imxrt1062)	40s
target-arm-cmake (am335x)	31s
target-arm (stm32f100)	46s
target-arm (stm32f407)	54s
target-arm-cmake (bcm2835_raspi_b)	58s
target-arm-cmake (lpc11c24)	53s
target-arm (stm32f429)	34s
target-arm-cmake (nxp_imxrt1062)	1m 7s
target-arm (stm32f446)	29s
target-arm-cmake (stm32f100)	42s
target-arm (stm32h7a3)	33s
target-arm-cmake (stm32f407)	55s
target-arm (stm32l100c)	44s
target-arm-cmake (stm32f429)	36s
target-arm (stm32l152)	32s
target-arm-cmake (stm32f446)	30s
target-arm-cmake (stm32h7a3)	31s
target-arm-cmake (stm32l100c)	30s
target-arm-macos (am335x)	1m 6s
target-arm-cmake (stm32l152)	33s
target-arm-macos (bcm2835_raspi_b)	59s
target-arm-macos (lpc11c24)	54s
target-arm-macos (nxp_imxrt1062)	1m 21s
target-avr-cmake (avr)	17s
target-arm-macos (stm32f100)	1m 26s
target-avr-cmake (atmega2560)	24s
target-arm-macos (stm32f407)	59s
target-arm-macos (stm32f429)	1m 6s
target-avr-macos (avr)	50s
target-arm-macos (stm32f446)	53s
target-host-cmake	17s
target-avr-macos (atmega2560)	1m 4s
target-arm-macos (stm32h7a3)	52s
target-arm-macos (stm32l100c)	53s
target-riscvfe310 (riscvfe310)	1m 11s
target-x86_64	17s
target-arm-macos (stm32l152)	53s
	36m 23s

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