updates

content/CSE5313/Exam_reviews/CSE5313_E1.md

@@ -240,6 +240,9 @@ class Polynomial():
     def as_number(self) -> int:
         return sum([coefficient.value * self.p ** i for i, coefficient in enumerate(self.coefficients)])
 ```
+
+### Finite fields
+
 ```python
 class FiniteField():
     def __init__(self, p: int, n: int = 1, value: Polynomial = None, irreducible_polynomial: Polynomial = None):