Fix renamed variable after testing !

Author: lvlte

Project-Euler/test/Problem018.test.js

@@ -9,7 +9,7 @@ const example = `
 
 describe('Check Problem 18 - Maximum path sum I', () => {
  it('Check example', () => {
- expect(maxPathSum(triangle)).toBe(23)
+ expect(maxPathSum(example)).toBe(23)
  })
 
  it('Check solution', () => {