Contribute correction: ML Beginners Guide

 _    _     ______    _____    __   __  
| || | ||  /_   _//  /  ___||  \ \\/ // 
| || | ||   -| ||-  | // __     \ ` //  
| \\_/ ||   _| ||_  | \\_\ ||    | ||   
 \____//   /_____//  \____//     |_||   
  `---`    `-----`    `---`      `-`'