title: Combine two cells in a new cell, replace all spaces with dash, and lowercase
body: <p>Trying to combine two cells in a Google spreadsheet, replace all the spaces with a "-", and lowercase everything.</p>
  
  <p>Cell 1: GWG-1</p>
  
  <p>Cell 2: Product Name 1</p>
  
  <p>New Cell 3: gwg-1-product-name-1</p>