Add name to Core Team list in README

[juliannatetreault]

What type of PR is this? (check all applicable)

• Refactor
• Feature
• Bug Fix
• Optimization
• Documentation Update

Added to documentation?

• docs.dev.to
• readme
• no documentation needed

[optional] What gif best describes this PR or how it makes you feel?

[claassistantio]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

---

Julianna Tetreault seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[jacobherrington]

[vaidehijoshi]

✨

[benhalpern]

Looks good! @juliannatetreault can you sign the Contributor License Agreement above? Not strictly necessary given your employment status, but still cleaner to check that box.

[benhalpern]

Actually nevermind, you might have already signed it but it's not properly registering, is that the case?

[juliannatetreault]

Actually nevermind, you might have already signed it but it's not properly registering, is that the case?

Sorry that I'm just seeing this! I actually ran into some major Git issues that I had to handle and ultimately had to close this PR in favor of a PR that I am about to open that should work without any issues. 😄