add "How to program a text adventure in C"

[AfterRace]

Add "How to program a text adventure in C" under C section

Description

The guide is divided in 25 part, which 22 are completed.

Motivation and Context

The guide explore many aspects of C programming

How Has This Been Tested?

Previewed

Types of changes

• [ ] Content Update (change which fixes an issue or updates an already existing submission)
• [X] New Article (change which adds functionality)
• [ ] Documentation change

Checklist:

• [X] My code follows the code style of this project.
• [X] I have updated the documentation accordingly.
• [X] I have read the CONTRIBUTING document.
• [X] I have made checks to ensure URLs and other resources are valid