Update README.md

Author: soapyigu

README.md

@@ -19,6 +19,8 @@
 | Title | Solution | Difficulty | Time | Space |
 | ----- | -------- | ---------- | ---- | ----- |
 [Summary Ranges](https://leetcode.com/problems/summary-ranges/)| [Swift](./Array/SummaryRanges.swift)| Medium| O(n)| O(n)|
+[Intersection of Two Arrays](https://leetcode.com/problems/intersection-of-two-arrays/)| [Swift](./Array/IntersectionTwoArrays.swift)| Easy| O(n)| O(n)|
+[Intersection of Two Arrays II](https://leetcode.com/problems/intersection-of-two-arrays-ii/)| [Swift](./Array/IntersectionTwoArraysII.swift)| Easy| O(nlogn)| O(n)|
 [Contains Duplicate](https://leetcode.com/problems/contains-duplicate/)| [Swift](./Array/ContainsDuplicate.swift)| Easy| O(n)| O(n)|
 [Contains Duplicate II](https://leetcode.com/problems/contains-duplicate-ii/)| [Swift](./Array/ContainsDuplicateII.swift)| Easy| O(n)| O(n)|
 [Remove Duplicates from Sorted Array](https://leetcode.com/problems/remove-duplicates-from-sorted-array/)| [Swift](./Array/RemoveDuplicatesFromSortedArray.swift)| Easy| O(n)| O(1)|