How to document application source file using doxygen?

@elisha_langworth 

To document application source files using Doxygen, follow these steps:

1. Install Doxygen: If you haven't already installed Doxygen, download and install it from the official website: http://www.doxygen.nl/
2. Add Doxygen comments: In your source code files, add comments using Doxygen syntax. Doxygen recognizes special comment blocks that start with either /*! or ///. Here's an example of a Doxygen comment block:

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/**
 * @file main.cpp
 * @brief Main application file
 */
 
#include <iostream>

/**
 * @brief The main function
 * @param argc The number of command-line arguments
 * @param argv The array of command-line arguments
 * @return The exit status of the program
 */
int main(int argc, char* argv[]) {
    std::cout << "Hello, world!" << std::endl;
    return 0;
}

1. Customize Doxygen configuration: Create a Doxyfile configuration file or configure Doxygen through a graphical interface to customize the output documentation format, style, and other options.
2. Generate documentation: Run Doxygen on your source files to generate the HTML, PDF, or other output formats. You can do this using the command line or through a graphical interface.
3. View documentation: Once the documentation is generated, open the generated HTML files in a web browser to view the documentation for your application source files.

By following these steps, you can easily document your application source files using Doxygen and generate professional-looking documentation for your code.