Includes two examples of using program with "stability" display

Exists in both documents folder and project folder

Characters from the input name get priority and thus appear higher.
Currently, duplicate letters in name are ignored.

Realized that this assignment doesn't have (rather silly)
linked list naming restrictions.

As such, list class and variable names have been refactored.
"Enqueue_Singly" method has also been removed, as there's no
reason to ever use it.