Update README.md with more Xcode instructions

[carlosmiceli]

Details

Updated with instructions for Xcode that would have saved me a lot of time!

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[melvin-bot]

@lakchote Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

[carlosmiceli]

I have read the CLA Document and I hereby sign the CLA

[carlosmiceli]

Hey @blimpich, GH suggested you as a reviewer so I figured I'd bring you in. I wanted to make a small improvement that would have helped me a lot to see in the Readme, but apparently the process here is different to get the PR approved. Did I do something wrong or should I do something different for this suggested change? Thanks in advance for your help!

[blimpich]

Nope you didn't do anything wrong. If were just updating the readme this PR is good. The failing checks have to do with our automated checklists that we use for all Expensify/App PRs. If you look at other App PRs you'll notice each PR has a big long checklist that the author goes through to make sure that they've done their due diligence.

We're not changing any code here though so we're good to skip those checks 👍

[melvin-bot]

@blimpich looks like this was merged without a test passing. Please add a note explaining why this was done and remove the Emergency label if this is not an emergency.

[blimpich]

Not an emergency, just a README change

[OSBotify]

🚀 Deployed to staging by https://github.com/blimpich in version: 1.4.65-0 🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅

[carlosmiceli]

@blimpich Perrrfect, thanks for the explanation too!

[OSBotify]

🚀 Deployed to production by https://github.com/mountiny in version: 1.4.65-5 🚀

platform	result
🤖 android 🤖	success ✅
🖥 desktop 🖥	success ✅
🍎 iOS 🍎	success ✅
🕸 web 🕸	success ✅