Add instruction to use var for declaring variables

[jinolacson]

javascript-4-prototype/instanceArray.js

Lines 1 to 6 in e8c19e3

	/*
	Your 3 Users will be the following.
	0) Aodhan, aodhan@boom.camp, 'iLoveJS'
	1) Greg, greg@boom.camp, 'iLovePython'
	2) Oscar, oscar@boom.camp, 'iLoveSoccer'
	*/

Change into:

//Note: use var for declaring variables
/*
  Your 3 Users will be the following.
    0) Aodhan, aodhan@boom.camp, 'iLoveJS'
    1) Greg, greg@boom.camp, 'iLovePython'
    2) Oscar, oscar@boom.camp, 'iLoveSoccer'
*/