docs: Updated sections and text presentation
docs: Updated sections and text presentation

thiagomarques2015/Kaio-machine-learning-human-face-detection,thiagomarques2015/Kaio-machine-learning-human-face-detection,thiagomarques2015/Kaio-machine-learning-human-face-detection,thiagomarques2015/Kaio-machine-learning-human-face-detection