Correct spelling in Zoom Out Inserters comment (#68051)

* Correct spelling

* Fix caps

Co-authored-by: getdave <get_dave@git.wordpress.org>
Co-authored-by: shail-mehta <shailu25@git.wordpress.org>
Co-authored-by: MaggieCabrera <onemaggie@git.wordpress.org>

packages/block-editor/src/components/block-tools/zoom-out-mode-inserters.js

@@ -74,7 +74,7 @@ function ZoomOutModeInserters() {
 	const nextClientId = blockOrder[ insertionIndex ];
 
 	// If the block insertion point is visible, and the insertion
-	// indicies match then we don't need to render the inserter.
+	// Indices match then we don't need to render the inserter.
 	if (
 		insertionPointVisible &&
 		blockInsertionPoint?.index === insertionIndex