Timestamps:
0:00 - Brad's Intro
0:50 - Ania's Intro
1:11 - Recursion explainer
04:06 - Setting up our HTML
04:10 - Styling our Grid in CSS
07:20 - Setting up our JavaScript usng the DOM EventListener
08:47 - Creating our Board using .createElement() and .appendChild()
16:57 - Adding numbers to the board using Modulus and .contains()
25:21 - Checking what is under a Square usng .getAttribute() .innerHTML and .add()
31:33 - Checking neighbouring squares using recursion and setTimeout
42:56 - Adding flags to squares with a left click
44:46 - Checking for wins