Create a function that generates a superhero name based on a given name.

The function should use the first three letters of the original name as the prefix for the superhero name combined with the suffix parameter. If the name has fewer than three letters, use the entire name as the prefix.

Parameters:

• name (str): The original name from which to generate the superhero name.
• suffix (str): The suffix to append to the prefix.

Example:

name = "Mark"
suffix = "man"
superhero_name = "Marman"

name = "Al"
suffix = "girl"
superhero_name = "Algirl"  # Using the full name as it has fewer than 3 letters