Contributor agreement

[Ridwanah]

I followed the contributor agreement instructions and I added my email to the end of CONTRIBUTING.md. I accidentally committed some unnecessary files like ds_store, which you can discard.

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This change is 

[faucomte97]

No worries @Ridwanah, you can go ahead and revert these changes yourself - the pipeline requires only CONTRIBUTING.md to be changed - please revert all changes other than the ones to that file.

[Ridwanah]

I reverted the other changes I made. The only change left is adding my email.

[faucomte97]

Reviewed 1 of 5 files at r1, 4 of 4 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Ridwanah)

[faucomte97]

This pull request looks good @Ridwanah, we're almost there! You should have just received an email that you need to reply to with the response mentioned in the guide so we can verify you own the email. Once we receive your response, I will merge in this PR and you'll be an official Code for Life contributor!
And I will then start reviewing your other PR in rapid router 😄