sort the exercises alphabetically

Author: sumn2u

en/exercises/README.md

@@ -9,15 +9,14 @@ pageNumber: 146
 
 In this chapter we will be performing exercises to test our knowledge in JavaScript. The exercises that we will be performing are listed below:
 
-* [Console](./console.md)
-* [Multiplication](./multiplication.md)
-* [User Input Variables](./user-input-variables.md)
-* [Constants](./constants.md)
 * [Concatenation](./concatenation.md)
-* [Functions](./functions.md)
 * [Conditional Statements](./conditional-statements.md)
-* [Objects](./objects.md)
+* [Constants](./constants.md)
+* [Console](./console.md)
 * [FizzBuzz Problem](./fizzbuzz-problem.md)
+* [Functions](./functions.md)
 * [Get the Titles!](./get-the-titles.md)
-
+* [Multiplication](./multiplication.md)
+* [Objects](./objects.md)
+* [User Input Variables](./user-input-variables.md)