[css-2020] Correct section for css-font-loading-3

css-font-loading-3 is shipping in a bunch of browsers, but the spec is
far from stable (many open issues, TR outdated…), so adding it to the
fairly stable bucket rather than the rough interop bucker was a
mistake, which is now corrected. Related to w3c#4715

Author: frivoal

css-2020/Overview.bs

@@ -362,11 +362,6 @@ Fairly Stable Modules with limited implementation experience</h3>
 			Describes how the CSS formatting box tree is generated
 			from the document element tree
 			and defines the display property that controls it.
-
-		<dt><a href="https://www.w3.org/TR/css-font-loading/">CSS Font Loading Module Level 3</a>
-		  [[CSS-FONT-LOADING-3]]
-		<dd>
-			Describes events and interfaces used for dynamically loading font resources.
 	</dl>
 
 <h3 id=rough-interop>
@@ -408,6 +403,11 @@ Modules with Rough Interoperability</h3>
 		  [[FILTER-EFFECTS-1]]
 		<dd>
 			Filter effects are a way of processing an element’s rendering before it is displayed in the document.
+
+		<dt><a href="https://www.w3.org/TR/css-font-loading/">CSS Font Loading Module Level 3</a>
+		  [[CSS-FONT-LOADING-3]]
+		<dd>
+			Describes events and interfaces used for dynamically loading font resources.
 	</dl>
 
 <h3 id="css-levels">