Update readme, create factorial_examples folder and move existing code into it

factorial.py

@@ -1,20 +0,0 @@
-def factorial(n: int) -> int:
-    if n < 2:
-        return n
-    else:
-        return n * factorial(n-1)
-
-def factorial_iter(n: int) -> int:
-    fact = 1
-    # Grab absolute value to ensure n is a positive integer
-    n = abs(n)
-    for i in range(2, n+1):
-        fact *= i
-    return fact
-
-user_input = int(input("Insert number to calculate factorial for: "))
-
-# Avoid recursion limit
-if user_input < 1000:
-    print(f"Recursive factorial {user_input}: {factorial(user_input)}")
-print(f"Iterative factorial {user_input}: {factorial_iter(user_input)}")