Update README.md

Updated formatting.

README.md

@@ -215,13 +215,13 @@ Only one valid answer exists.
 Certainly, here is one potential way to implement a function in Python 3 that effectively solves the problem.
 '''python
 class Solution:
-def twoSum(self, A: List[int], T: int) -> List[int]:
-ans = []
-for x in range(len(A)-1):
-  if A[x]+A[x+1] == T:
-    ans.append(x)
-  else:
-    ans.append(x+1)
-return ans
+  def twoSum(self, A: List[int], T: int) -> List[int]:
+    ans = []
+    for x in range(len(A)-1):
+      if A[x]+A[x+1] == T:
+        ans.append(x)
+      else:
+        ans.append(x+1)
+    return ans
 '''
 ```