SIGN IN SIGN UP

Fix typo in README (#13610)

Fixes a typo in the README which (I believe) was accidentally committed
in #13604

Release Notes:

- N/A
B
Bennet Bo Fenner committed
af5efcea1f8b4e69ac326d31be613585f9ecadcf
Parent: 228202a
Committed by GitHub <noreply@github.com> on 6/27/2024, 9:58:23 PM