Fix typo issue (#20)
Fix typo issue (#20)

Fix the issue: https://github.com/yangshun/tech-interview-handbook/issues/19
The given example was not correct:
'E.g. "abba" and "redblueredblue" should return true'
It has ben fixed by changing the input "redblueredblue" to "redbluebluered"
yangshun/tech-interview-handbook,yangshun/tech-interview-handbook,yangshun/tech-interview-handbook,yangshun/tech-interview-handbook,yangshun/tech-interview-handbook