Apply new format to snippets and template

snippets/factorial.md

@@ -5,10 +5,10 @@ tags: math,recursion,beginner
 
 Calculates the factorial of a number.
 
-Use recursion. 
-If `num` is less than or equal to `1`, return `1`. 
-Otherwise, return the product of `num` and the factorial of `num - 1`. 
-Throws an exception if `num` is a negative or a floating point number.
+- Use recursion.
+- If `num` is less than or equal to `1`, return `1`.
+- Otherwise, return the product of `num` and the factorial of `num - 1`.
+- Throws an exception if `num` is a negative or a floating point number.
 
 ```py
 def factorial(num):