Typos in Part 14

[pdchv]

Hi, there are a few typos in the text of part 14, e.g.:

• Section "Creating the grid" : "two.dimensional";
• Section "Refactoring?": "requiares"
• Section "Move counter" : "displaye", "shanges"
• Section "The last programming exercise": "appropriate,a dn"

All best wishes, p