[css-grid-1][editorial] fix indent

css-grid-1/Overview.bs

@@ -1336,7 +1336,7 @@ Automatic Minimum Size of Grid Items</h3>
 	the size suggestion is clamped
 	by both the [=maximum size=] and the [=preferred size=], whichever are definite,
 	with their indefinite percentages resolved for this purpose against zero
-    (and therefore considered definite).
+	(and therefore considered definite).
 
 	Note: The argument to ''fit-content()'' does <em>not</em> clamp
 	the [=content-based minimum size=] in the same way as a