Small update to wording in using-the-public-folder.md

Created by: zanemayo

I think I have corrected the wording.

I changed from 'Missing files will not be called at compilation time' to 'Missing files will not be caught at compilation time'.

If 'called' was indeed the intended wording, then please decline the PR without comment. I don't want to waste anyone's time.

requested review from @root

requested review from @root

requested review from @root

Created by: facebook-github-bot

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Created by: stale[bot]

This pull request has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

added stale label

restored source branch github/fork/zanemayo/patch-1