docs: add missing space

Signed-off-by: Jens Oliver Meiert <jens@meiert.com>

Author: j9t

css-text-4/Overview.bs

@@ -5488,7 +5488,7 @@ Selecting How to Wrap: the 'text-wrap-style' property</h3>
 
 	<pre class="propdef">
 	Name: text-wrap-style
-	Value: auto| balance | stable | pretty
+	Value: auto | balance | stable | pretty
 	Initial: auto
 	Applies to: [=block containers=] hat establish an [=inline formatting context=]
 	Inherited: yes
@@ -13269,4 +13269,4 @@ Additions Since Level 3</h3>
 		text-transform/math/text-transform-math-auto-001.html
 		text-transform/math/text-transform-math-auto-002.html
 		text-transform/math/text-transform-math-auto-003.html
-	</wpt>
+	</wpt>