Concepts to cover

[lilianabs]

Thanks for creating this awesome project. It would be a good idea to list the concepts that have already been covered. This way, we could create projects that showcase other aspects of Julia. So far, I think we have covered the following:

• Input from the command line
• If-else
• While
• For loops
• Lists (add items)
• Functions
• Basic arithmetic operations
• Generating random numbers
• Using external packages

Maybe we can add projects that involve the following concepts:

• Text/File IO
• Benchmarking
• Multiple dispatch

What other concepts can we showcase?