Small consistency fixes and typos across quickstarts #14141

Job	Run time
python_test (ubuntu-22.04)	1m 45s
python_test (macos-11)	1m 53s
python_test (windows-2022)	2m 32s
cpp_test_driver (ubuntu-22.04)	5m 24s
cpp_cmake (ubuntu-22.04)	8m 35s
cpp_test_driver (macos-12)	4m 17s
build_and_test (ubuntu-22.04, stable)	8m 29s
cpp_cmake (macos-12)	26m 3s
cpp_test_driver (windows-2022)	7m 4s
build_and_test (ubuntu-22.04, 1.70)	9m 51s
ffi_32bit_build	1m 13s
cpp_cmake (windows-2022)	9m 26s
build_and_test (macos-11, stable)	16m 41s
mcu (pico-st7789, thumbv6m-none-eabi)	30s
build_and_test (windows-2022, stable)	9m 10s
mcu_esp	2m 27s
node_test (ubuntu-22.04)	2m 47s
mcu (stm32h735g, thumbv7em-none-eabihf)	35s
build_and_test (windows-2022, 1.70)	8m 35s
node_test (macos-11)	5m 19s
build_and_test (windows-2022, beta, --exclude ffmpeg --exclude gstreamer-player)	8m 11s
node_test (windows-2022)	4m 45s
android	1m 18s
esp-idf-quick	8m 53s
fmt_test	1m 16s
miri	44s
uefi-demo	31s
updater_test (0.3.0)	1m 42s
docs / docs	6m 4s
tree-sitter / tree-sitter-tests	12s
wasm_demo / wasm_demo	13m 51s
wasm / wasm	3m 34s
wasm / build-slintpad	51s
wasm / lint-slintpad	27s
cpp_package_test	2m 22s
	3h 7m 17s

Provide feedback