adding space pre-commit error

maths/euler_modified.py

@@ -8,6 +8,7 @@ def euler_modified(
 ) -> np.array:
     """
     Calculate solution at each step to an ODE using Euler's Modified Method
+
     The Euler forward scheme may be straightforward to implement, 
     but it can't give accurate solutions.
     So, they Proposed some changes to improve the accuracy