Implement a binary search algorithm to find the index of a target value in a sorted list of integers. Return the index if found, or -1 if not found. The input list is guaranteed to be sorted in ascending order.
Examples:
Input: sortedList = [1, 3, 5, 7, 9, 11], target = 7
Output: 3
Explanation: The target value 7 is found at index 3
Input: sortedList = [2, 4, 6, 8, 10], target = 5
Output: -1
Explanation: The target value 5 is not found in the list
Input: sortedList = [1, 2, 3, 4, 5], target = 1
Output: 0
Explanation: The target value 1 is found at index 0
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