docs: Improve comments and documentation in binary search algorithm

Recursive/BinarySearch.js

@@ -1,11 +1,26 @@
 /**
- * @function BinarySearch
- * @description Search the integer inside the sorted integers array using Binary Search Algorithm.
- * @param {Integer[]} arr - sorted array of integers
- * @param {Integer} low - The input integer
- * @param {Integer} high - The input integer
- * @param {Integer} searchValue - The input integer
- * @return {Integer} - return index of searchValue if found else return -1.
+ * @function binarySearch
+ * @description Recursively searches for a `searchValue` within a sorted `arr` of integers.
+ * This implementation uses default parameters for `low` and `high` to allow
+ * for a simple initial call (e.g., `binarySearch(arr, value)`).
+ *
+ * @example
+ * const arr = [1, 2, 3, 4, 5, 6, 7];
+ * const value = 5;
+ * const index = binarySearch(arr, value);
+ * // index will be 4
+ *
+ * @example
+ * const arr = [1, 2, 3, 4, 5, 6, 7];
+ * const value = 8;
+ * const index = binarySearch(arr, value);
+ * // index will be -1
+ *
+ * @param {Integer[]} arr - The sorted array of integers to search.
+ * @param {Integer} searchValue - The integer value to search for in the array.
+ * @param {Integer} [low=0] - The starting index of the subarray. (Primarily for internal recursive use).
+ * @param {Integer} [high=arr.length-1] - The ending index of the subarray. (Primarily for internal recursive use).
+ * @return {Integer} - The index of `searchValue` if found, otherwise -1.
  * @see [BinarySearch](https://en.wikipedia.org/wiki/Binary_search_algorithm)
  */