feat: TL;DR implementation

[hemanialaparthi]

Description: GatorGrader includes many commands, but many students, especially in introductory classes, are unfamiliar with most of them. To make it easier for students to understand and use GatorGrader, a --tldr option would be a helpful addition.

Solution:

The --tldr flag will offer two main features:

• Running --tldr alone will display a summary of commonly used GatorGrader commands with example usage.
• Running --tldr [specific command] will provide a detailed explanation and example for the specified command.

This addition will make GatorGrader more accessible to new users by offering quick reference information in a simplified format.

[gkapfham]

Hello @hemanialaparthi it is also important to point out that many teachers who use GatorGrade as the front end for GatorGrader do now know the commands for using the tool, especially when it comes to writing the gatorgrade.yml file.

Here is an example:

- description: Ensure that Question 1 has correct number of documented functions using the command 'symbex'
  check: MatchCommandFragment
  options:
    command: "poetry run symbex -s --documented -f questions/question_one.py --count"
    fragment: 3
    count: 1
    exact: true

It would be nice if the --tldr actually gave examples of all of the various commands, like MatchCommandFragment that can be specified for running in a gatorgrade.yml file.