Update lemon-candles-vanish.md

Fixed typo in `multiple`

Author: DellaBitta

.changeset/lemon-candles-vanish.md

@@ -3,6 +3,6 @@
 'firebase': patch
 ---
 
-Fixed: invoking `connectAuthEmulator` mulitiple times with the same parameters will no longer cause
+Fixed: invoking `connectAuthEmulator` multiple times with the same parameters will no longer cause
 an error. Fixes [GitHub Issue #6824](https://github.com/firebase/firebase-js-sdk/issues/6824).