[css-counter-styles-3] Fix links

Author: fantasai

css-counter-styles-3/Overview.bs

@@ -159,7 +159,7 @@ Defining Custom Counter Styles: the ''@counter-style'' rule</h2>
 	<pre>@counter-style <<counter-style-name>> { <<declaration-list>> }</pre>
 
 	<dfn>&lt;counter-style-name></dfn> is a <<custom-ident>>
-	that is not an <a>ASCII case-insensitive</a> match for ''<<counter-style>>/none''.
+	that is not an <a>ASCII case-insensitive</a> match for ''list-style-type/none''.
 	The <<counter-style-name>> is a [=tree-scoped name=].
 
 	The keywords ''decimal'', ''disc'', ''square'', ''circle'', ''disclosure-open'', and ''disclosure-closed''
@@ -2637,7 +2637,7 @@ Changes since the December 2017 Candidate Recommendation</h3>
 
 	Significant changes since the <a href="https://www.w3.org/TR/2017/CR-css-counter-styles-3-20171214/">December 14 2017 Candidate Recommendation</a>:
 
-	* Made ''<<counter-style>>/none'', ''decimal'', ''disc'', ''circle'', ''square'', ''disclosure-open'', ''disclosure-close'' non-overridable.
+	* Made ''list-style-type/none'', ''decimal'', ''disc'', ''circle'', ''square'', ''disclosure-open'', ''disclosure-close'' non-overridable.
 		(<a href="https://github.com/w3c/csswg-drafts/issues/3584">Issue 3584</a>)
 	* Clarified counter-style lookups in Shadow DOM.
 		(<a href="https://github.com/w3c/csswg-drafts/issues/5693">Issue 5693</a>)
@@ -2673,7 +2673,7 @@ Changes since the June 2015 Candidate Recommendation</h3>
 
 	Significant changes since the <a href="https://www.w3.org/TR/2015/CR-css-counter-styles-3-20150611/">June 11 2015 Candidate Recommendation</a>:
 
-	* Exclude ''<<counter-style>>/none'' and ''disc'' from being the name of a counter style.
+	* Exclude ''list-style-type/none'' and ''disc'' from being the name of a counter style.
 	* When setting CSSCounterStyle.name, take the string directly; don't [=CSS/parse=] it as an ident.
 	* Clarify that counter styles are read out in the element's <a>content language</a>.
 	* Clarified that 'additive-symbols' tuples must be of <em>strictly</em> decreasing weight.