[selectors-5][editorial] Fixed link errors

Author: SebastianZ

selectors-5/Overview.bs

@@ -19,9 +19,13 @@ WPT Display: closed
 </pre>
 
 <pre class="link-defaults">
-spec:selectors-4; type:dfn; text:selector
-spec:html; type:dfn; text:states set
-spec:html; type:dfn; text:heading level
+spec:html; type:dfn;
+	text:heading level
+	text:states set
+spec:selectors-4; type:dfn;
+	text:host language
+	text:selector
+	text:type selector
 </pre>
 
 <h2 id="intro">
@@ -276,7 +280,7 @@ The Future-element Pseudo-class: '':future''</h3>
 
 	The <dfn id='future-pseudo'>:future</dfn> pseudo-class represents any element that is
 	defined to occur entirely after a '':current'' element.
-	For example, the WebVTT spec defines the '':future'' pseudo-class <a href="http://dev.w3.org/html5/webvtt/#the-past-and-future-pseudo-classes">relative to the current playback position of a media element</a>.
+	For example, the WebVTT spec defines the '':future'' pseudo-class <a href="https://w3c.github.io/webvtt/#the-past-and-future-pseudo-classes">relative to the current playback position of a media element</a>.
 	If a time-based order of elements is not defined by the document language,
 	then this represents any element that is a (possibly indirect) next
 	sibling of a '':current'' element.
@@ -1480,7 +1484,3 @@ Acknowledgements</h2>
 		selection-image-002.html
 		spurious-brace-crash.html
 	</wpt>
-
-
-
-