Add instruction to use var for declaring variables

[jinolacson]

javascript-2-objects/practice.js

Lines 1 to 7 in d12d9ee

	/*
	Once you complete a problem, refresh ./SpecRunner.html in your browser and check to see if the problem's test(s) are passing.
	Passed tests will be indicated by a green circle.
	Failed tests will be indicated by a red X.
	You can refresh the page at any time to re-run all the tests.
	*/

Change into:

/*
  Once you complete a problem, refresh ./SpecRunner.html in your browser and check to see if the problem's test(s) are passing.
  Passed tests will be indicated by a green circle.
  Failed tests will be indicated by a red X.

  You can refresh the page at any time to re-run all the tests.
  Note: user var for declaring variables
*/