[css-text-3] test coverage information

Author: frivoal

css-text-3/Overview.bs

@@ -175,6 +175,8 @@ Introduction</h2>
 	whitespace-followed-by-cham-symbol-crash.html
 	white-space/append-whitespace-only-node-crash-001.html
 	crashtests/rendering-rtl-bidi-override-crash.html
+	crashtests/rendering-table-caption-with-list-item-and-svg-crash.html
+	crashtests/rendering-table-caption-with-negative-margins-crash.html
 	</wpt>
 
 <h3 id="placement">