Order exercise folders

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

11 getTheTitles/README.md

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+# Exercise 11 - Get the Titles!
+
+You are given an array of objects that represent books with an author and a title that looks like this:
+
+```javascript
+const books = [
+  {
+    title: 'Book',
+    author: 'Name'
+  },
+  {
+    title: 'Book2',
+    author: 'Name2'
+  }
+]
+```
+
+Your job is to write a function that takes the array and returns an array of titles:
+
+```javascript
+getTheTitles(books) // ['Book','Book2']
+```
+
+## Hints
+
+- You should use a built-in javascript method to do most of the work for you!

11 getTheTitles/getTheTitles.js

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+const getTheTitles = function() {
+
+};
+
+module.exports = getTheTitles;

11 getTheTitles/getTheTitles.spec.js

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+const getTheTitles = require('./getTheTitles')
+
+describe('getTheTitles', () => {
+    const books = [
+      {
+        title: 'Book',
+        author: 'Name'
+      },
+      {
+        title: 'Book2',
+        author: 'Name2'
+      }
+    ]
+
+  test('gets titles', () => {
+    expect(getTheTitles(books)).toEqual(['Book','Book2']);
+  });
+});