Added Insertion Sort [JavaScript] (iiitv#394)

* Added Insertion Sort [JavaScript]

*  bot fix v1.0

Author: anshumanv

README.md

@@ -25,7 +25,7 @@ Community (college) maintained list of Algorithms and Data Structures implementa
 | [Euclidean GCD](https://en.wikipedia.org/wiki/Euclidean_algorithm) | [:white_check_mark:](euclidean_gcd/euclidean_gcd.c) | | [:white_check_mark:](euclidean_gcd/EuclideanGCD.java) | [:white_check_mark:](euclidean_gcd/euclidean_gcd.py) | [:white_check_mark:](euclidean_gcd/euclidean_gcd.go) | [:white_check_mark:](euclidean_gcd/euclideanGCD.js) |
 | [Exponentiation by Squaring](https://en.wikipedia.org/wiki/Exponentiation_by_squaring) | [:white_check_mark:](exponentiation_by_squaring/exponentiation_by_squaring.c) | | [:white_check_mark:](exponentiation_by_squaring/ExponentiationBySquaring.java) | [:white_check_mark:](exponentiation_by_squaring/exponentiation_by_squaring.py) | [:white_check_mark:](exponentiation_by_squaring/exponentiation_by_squaring.go) | [:white_check_mark:](exponentiation_by_squaring/exponentiationBySquaring.js) |
 | [Heap Sort](https://en.wikipedia.org/wiki/Heapsort) | [:white_check_mark:](heap_sort/heap_sort.c) | | [:white_check_mark:](heap_sort/HeapSort.java) | [:white_check_mark:](heap_sort/heap_sort.py) | | [:white_check_mark:](heap_sort/heapSort.js) |
-| [Insertion Sort](https://en.wikipedia.org/wiki/Insertion_sort) | [:white_check_mark:](insertion_sort/insertion_sort.c) | | [:white_check_mark:](insertion_sort/InsertionSort.java)| [:white_check_mark:](insertion_sort/insertion_sort.py) | [:white_check_mark:](insertion_sort/insertion_sort.go) | |
+| [Insertion Sort](https://en.wikipedia.org/wiki/Insertion_sort) | [:white_check_mark:](insertion_sort/insertion_sort.c) | | [:white_check_mark:](insertion_sort/InsertionSort.java)| [:white_check_mark:](insertion_sort/insertion_sort.py) | [:white_check_mark:](insertion_sort/insertion_sort.go) | [:white_check_mark:](insertion_sort/insertionSort.js) |
 | [k-NN](https://en.wikipedia.org/wiki/K-nearest_neighbors_algorithm) | | | | [:white_check_mark:](k_nn/k_nn.py) | | |
 | [Largest Sum Contiguous Subarray](http://www.geeksforgeeks.org/largest-sum-contiguous-subarray/) | [:white_check_mark:](largest_sum_contiguous_subarray/largestSumContiguousSubarray.c) | | [:white_check_mark:](largest_sum_contiguous_subarray/LargestSumContiguousSubarray.java) | [:white_check_mark:](largest_sum_contiguous_subarray/largest_sum_contiguous_subarray.py) | [:white_check_mark:](largest_sum_contiguous_subarray/largestSumContiguousSubarray.go) | [:white_check_mark:](largest_sum_contiguous_subarray/largestSumContiguousSubarray.js) |
 | [Linear Regression](https://en.wikipedia.org/wiki/Linear_regression) | | | | [:white_check_mark:](linear_regression/linear_regression.py) | | |

insertion_sort/insertionSort.js

@@ -0,0 +1,30 @@
+/* Following algorithm sorts the input array in ascending order
+* Time Complexity : O(n^2)
+* Auxiliary Space: O(1)
+* n is the number of elements in the array to be sorted
+*/
+
+function insertionSort (arr) {
+	/*
+	: param arr : Array to be sorted
+	: return : Sorted Array
+	*/
+	for (let i = 1; i < arr.length; i++) {
+		let j = i - 1;
+		let temp = arr[i];
+		while (j >= 0 && arr[j] > temp) {
+			arr[j + 1] = arr[j];
+			j--;
+		}
+		arr[j + 1] = temp;
+	}
+	return arr;
+}
+
+function main () {
+	let arr = [5, 9, 3, 1, 99];
+	arr = insertionSort(arr);
+	console.log(arr);
+}
+
+main();