renamed:    before_os_arm/cpp.html -> before_os_cm3/cpp.html
	renamed:    before_os_arm/mpu.html -> before_os_cm3/mpu.html
	renamed:    before_os_arm/newlib.html -> before_os_cm3/newlib.html
	renamed:    before_os_arm/pendsv.html -> before_os_cm3/pendsv.html
	renamed:    before_os_arm/prepare_env.html -> before_os_cm3/prepare_env.html
	renamed:    before_os_arm/systick.html -> before_os_cm3/systick.html
	renamed:    before_os_arm/usart.html -> before_os_cm3/usart.html
	renamed:    before_os_arm/user_button_int.html -> before_os_cm3/user_button_int.html
	renamed:    before_os_arm/user_button_polling.html -> before_os_cm3/user_button_polling.html