After installing looks like it doesn't add to path

[Gejfish]

pi@raspberrypi:~/ArduiPi_OLED $ sudo make
g++ -shared -Wl,-soname,libArduiPi_OLED.so.1 -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -o libArduiPi_OLED.so.1.0 ArduiPi_OLED.o Adafruit_GFX.o bcm2835.o Wrapper.o -li2c
[Install Library]
[Install Headers]

pi@raspberrypi:~/ArduiPi_OLED $./oled_demo --help
-bash: ./oled_demo: No such file or directory

[microhenrio]

The documentation seems outdated, enter the example folder and make the examples.