Merge pull request #10 from PollockCR/master

Create 3-Specification.cpp
Create FindDigits.cpp

Found at: https://www.hackerrank.com/challenges/find-digits
Update README.md
Create IsFibo.cpp

From: https://www.hackerrank.com/challenges/is-fibo
Merge pull request #11 from PollockCR/practice

Practice