Fix spelling mistake

Author: Rion5

LeetCodeConsoleApp/Program.cs

@@ -97,7 +97,7 @@ static void Main(string[] args)
 
  #endregion
 
- #region 167. Two Sum II - Inpur array is sorted
+ #region 167. Two Sum II - Input array is sorted
 
  TwoSumII twoSumII = new TwoSumII(new []{1,2,3,7}, 10);
  twoSumII.PrintExample();