Update README.md

Author: khushi3004

README.md

@@ -3,6 +3,7 @@
 Number | Name of Problem | Leetcode Link | Video Link | Code
 --- | :---: | --- | --- | ---
 55 | Jump Game | https://leetcode.com/problems/jump-game/ | https://youtu.be/C6AZyfj-Kyw | https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/55.%20Jump%20Game
+118 | Pascal's Triangle | https://leetcode.com/problems/pascals-triangle/description/ | https://youtu.be/eeleEMOlRpA | https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/118.%20Pascal's%20Triangle
 121 | Best Time to Buy and Sell Stock | https://leetcode.com/problems/best-time-to-buy-and-sell-stock/ | https://youtu.be/5skEWekmJ2w | https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/121.%20Best%20Time%20to%20Buy%20and%20Sell%20Stock
 134 | Gas Station | https://leetcode.com/problems/gas-station/ | https://youtu.be/3wUa7Lf1Xjk | https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/134.%20Gas%20Station
 198 | House Robber | https://leetcode.com/problems/house-robber/ | https://youtu.be/YEEQRP2ZFxk | https://github.com/Algorithms-Made-Easy/Leetcode-Challenge/blob/main/198.%20House%20Robber