- Remove image of phantom
- Remove notes for contributors
- Links to bottom and to markdown + some more
- Alternative code solution
### Notes:
- The guide article mentions the challenge can be solved by using `reduce()` but I couldn't find a way to do so. It might be better to remove that reference and the bottom link until someone provides one.
- The alternative code solution I provided uses a simpler way (in my opinion) to check if the values are integers but does not differ much from the original one. If necessary, feel free to remove it and go on with just the fixes.
