Fix typo

Author: Nils Schönwald

README.md

@@ -1698,13 +1698,13 @@ describe('MakeMomentJSGreatAgain', function() {
  });
 
  it('handles leap year', function() {
- cosnt date = new MakeMomentJSGreatAgain('2/1/2016');
+ const date = new MakeMomentJSGreatAgain('2/1/2016');
  date.addDays(28);
  assert.equal('02/29/2016', date);
  });
 
  it('handles non-leap year', function() {
- cosnt date = new MakeMomentJSGreatAgain('2/1/2015');
+ const date = new MakeMomentJSGreatAgain('2/1/2015');
  date.addDays(28);
  assert.equal('03/01/2015', date);
  });