[css-display] Typos: missing semicolon and parenthesis (w3c#1492)

Author: Loirooriol

css-display/Overview.bs

@@ -146,7 +146,7 @@ Box Layout Modes: the 'display' property</h2>
 	<pre class='prod'>
 	<dfn>&lt;display-outside></dfn>  = block | inline | run-in ;
 	<dfn>&lt;display-inside></dfn>   = flow | flow-root | table | flex | grid | ruby ;
-	<dfn>&lt;display-listitem></dfn> = list-item && <<display-outside>>? && [ flow | flow-root ]?
+	<dfn>&lt;display-listitem></dfn> = list-item && <<display-outside>>? && [ flow | flow-root ]? ;
 	<dfn>&lt;display-internal></dfn> = table-row-group | table-header-group |
 	                     table-footer-group | table-row | table-cell |
 	                     table-column-group | table-column | table-caption |
@@ -796,7 +796,7 @@ Appendix A: Glossary</h2>
 			which generate an additional marker box,
 			or ''display/table'' elements,
 			which generate a [=principal box|principal=] [=table wrapper box=]
-			and an additional [=table box=].
+			and an additional [=table box=]).
 			These additional boxes are placed with respect to the principal box.
 
 		<dt><dfn lt="inline-level|inline-level content">inline-level</dfn>