fix(js and ts): typo

- 'gilged' to 'gilded' in respective specs

TypeScript/test/guilded-rose.spec.ts

@@ -4,9 +4,9 @@ import { Item, GildedRose } from '../app/gilded-rose';
 describe('Gilded Rose', function () {
 
     it('should foo', function() {
-        const gilgedRose = new GildedRose([ new Item('foo', 0, 0) ]);
-        const items = gilgedRose.updateQuality();
+        const gildedRose = new GildedRose([ new Item('foo', 0, 0) ]);
+        const items = gildedRose.updateQuality();
         expect(items[0].name).to.equal('fixme');
     });
 
-});
+});