Order exercise folders

Ordered the exercise folders by placing their numbers in their folder name

09 palindromes/README.md

@@ -0,0 +1,19 @@
+# Exercise 09 - Palindromes
+
+Write a function that determines whether or not a given string is a palindrome.
+
+A palindrome is a string that is spelled the same both forwards and backwards, usually without considering punctuation or word breaks:
+
+### some palindromes:
+  - A car, a man, a maraca.
+  - Rats live on no evil star.
+  - Lid off a daffodil.
+  - Animal loots foliated detail of stool lamina.
+  - A nut for a jar of tuna.
+
+```javascript
+palindromes('racecar') // true
+palindromes('tacos') // false
+```
+
+

09 palindromes/palindromes.js

@@ -0,0 +1,5 @@
+const palindromes = function () {
+
+};
+
+module.exports = palindromes;

09 palindromes/palindromes.spec.js

@@ -0,0 +1,22 @@
+const palindromes = require('./palindromes')
+
+describe('palindromes', () => {
+  test('works with single words', () => {
+    expect(palindromes('racecar')).toBe(true);
+  });
+  test.skip('works with punctuation ', () => {
+    expect(palindromes('racecar!')).toBe(true);
+  });
+  test.skip('works with upper-case letters ', () => {
+    expect(palindromes('Racecar!')).toBe(true);
+  });
+  test.skip('works with multiple words', () => {
+    expect(palindromes('A car, a man, a maraca.')).toBe(true);
+  });
+  test.skip('works with multiple words', () => {
+    expect(palindromes('Animal loots foliated detail of stool lamina.')).toBe(true);
+  });
+  test.skip('doesn\'t just always return true', () => {
+    expect(palindromes('ZZZZ car, a man, a maraca.')).toBe(false);
+  });
+});