Fix documentation (TheAlgorithms#5311)

Author: Rohanrbharadwaj

maths/euler_modified.py

@@ -8,8 +8,8 @@ def euler_modified(
 ) -> np.array:
     """
     Calculate solution at each step to an ODE using Euler's Modified Method
-    The Euler is straightforward to implement, but can't give accurate solutions.
-    So, they Proposed some changes to improve the accuracy
+    The Euler Method is straightforward to implement, but can't give accurate solutions.
+    So, some changes were proposed to improve accuracy.
 
     https://en.wikipedia.org/wiki/Euler_method