simplify descriptions and add test for numbers ending with 11

Author: fayaz551

Sprint-3/2-practice-tdd/get-ordinal-number.test.js

@@ -37,8 +37,12 @@ test("should append 'rd' for numbers ending with 3, except those ending with 13"
   expect(getOrdinalNumber(23)).toEqual("23rd");
   expect(getOrdinalNumber(133)).toEqual("133rd");
 });
-test("should append 'th' for numbers ending with 3 that are also ending with 13", () => {
+test("should append 'th' for numbers ending with 11, 12, or 13", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+  expect(getOrdinalNumber(12)).toEqual("12th");
   expect(getOrdinalNumber(13)).toEqual("13th");
+  expect(getOrdinalNumber(111)).toEqual("111th");
+  expect(getOrdinalNumber(112)).toEqual("112th");
   expect(getOrdinalNumber(113)).toEqual("113th");
 });