Refactoring linkRequirements()

[abetomo]

• Fix indent of code
• Replace map with forEach
  • Because do not use the return value.

[dschep]

Thanks for the suggestion @abetomo. Already fixed the indent in #58 and I wasn't sure if there's any reason to use Array.forEach over Array.map so I did some googling. At least one source I can find suggests map is faster:

In reality, you shouldn’t be using .forEach() unless other methods such as .map() can’t do the trick. .map() is actually slightly faster than .forEach().

[abetomo]

I see!
Thank you for review.