Elixirschool: Add Enum.filter to Basic Enum Page

[wilbertliu]

Hello folks 👋🏻,

Elixir School has been my go-to resource when I need to find something that I might be forgotten. Recently I wonder if there's a filter function on Enum and want to find its usage. After I went to the Basic Enum Page, I'm surprized because there's no Enum.filter section in it. That made me try to Google it because I'm not sure Elixir doesn't have such function, and found it afterwards.

I believe it might not only me that need such section to learn / recall.
Do we mind to add the Enum.filter section? I would be more than happy to contribute. 🙂

[ybur-yug2]

@wilbertliu good eye! We have a contributing guide here and if you can get up and running PRs with improvements are welcome! I personally think its absolutely fitting and would be a good addition.

PS I'm actually @ybur-yug and am currently just locked out of that account because of an email snafu :P

[doomspork]

@wilbertliu please do open a PR 👍

We're always happy to have community help in enhancing the resource 😁

[wilbertliu]

@ybur-yug2 Thanks for pointing that out. Will review the contributing guide then! 😀
@doomspork Sure thing Sean! Will seek a good time to do this. Thanks a lot!