Update README.md

README.md

@@ -9,6 +9,7 @@ library_name: transformers
 pipeline_tag: text-generation
 widget:
 - text: "
+  ```python
   # You are given a 0-indexed m x n integer matrix grid. The width of a column is the maximum length of its integers.
   
   # For example, if grid = [[-10], [3], [12]], the width of the only column is 3 since -10 is of length 3.
@@ -19,7 +20,7 @@ widget:
 
   class Solution:
     def findColumnWidth(self, grid: List[List[int]]) -> List[int]:
-
+  ```
   "
   example_title: "New Medium Problem on Leetcode"
 ---