clarified the comment in exercise

[akshatcoder-hash]

This Pull request fixes #2230
Replaced this with the actual name of the function is_a_color_word which was causing confusion for the users

[akshatcoder-hash]

requesting review on this @mo8it

[rnazali]

Hi, maybe what the issue suggests is more like this:

// TODO: Fix the compiler error in the `main` function without changing `is_a_color_word` function.
fn is_a_color_word(attempt: &str) -> bool {
    attempt == "green" || attempt == "blue" || attempt == "red"
}

[mo8it]

AI reported…