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update example project readme #94

Job	Run time
build-project (ubuntu-latest, sudo apt update -yqq && sudo apt -yqq install libboost-dev)	24s
build-project (macos-latest, CMAKE_PREFIX_PATH=/opt/homebrew, brew install boost eigen && brew li...	46s
build-project (windows-latest, Boost_INCLUDE_DIR=D:/a/puara-gestures/puara-gestures/3rdparty, cho...	2m 11s
	3m 21s

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