diff --git a/README.md b/README.md
index c691b43..7f7abf1 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,15 @@
 # insertionSort
+public void insertionsort(int arr[],int size)
+{  int i,key,j;
+for(i=1;i<n;i++)
+{ key=arr[i];
+j=i-1;
+while(j>=0&&arr[j]>key)
+{
+arr[j+1]=arr[j];
+j=j-1;
+}
+arr[j+1]=key;
+}  
+}
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