Update links

Author: mfreed7

css-cascade-5/Overview.bs

@@ -1035,7 +1035,7 @@ Cascade Sorting Order</h3>
 			For this purpose:
 
 			<ul>
-				<li>Style sheets are ordered as in <a href="https://www.w3.org/TR/cssom-1/#documentorshadowroot-final-css-style-sheets">final CSS style sheets</a>.
+				<li>Style sheets are ordered as in <a href="https://drafts.csswg.org/cssom/#documentorshadowroot-final-css-style-sheets">final CSS style sheets</a>.
 				<li>Declarations from <a at-rule lt="@import">imported style sheets</a>
 					are ordered as if their style sheets were substituted in place of the ''@import'' rule.
 				<li>Declarations from style sheets independently linked by the originating document

cssom-1/Overview.bs

@@ -1298,10 +1298,9 @@ partial interface mixin DocumentOrShadowRoot {
 The <dfn attribute for=DocumentOrShadowRoot>styleSheets</dfn> attribute must return a {{StyleSheetList}} collection representing
 the <a>document or shadow root CSS style sheets</a>.
 
-BROKEN: The [=observable array attribute/set an indexed value=] algorithm
-
-The <a href="https://heycam.github.io/webidl/#observable-array-attribute-set-an-indexed-value">set an indexed value</a> algorithm
-for <dfn attribute for="DocumentOrShadowRoot"><code>adoptedStyleSheets</code></dfn>, given <var>value</var> and <var>index</var>, is the following:
+The [=observable array attribute/set an indexed value=] algorithm for
+<dfn attribute for="DocumentOrShadowRoot"><code>adoptedStyleSheets</code></dfn>, given <var>value</var> and <var>index</var>,
+is the following:
 <ol>
   <li>If <var>value</var>'s <a>constructed flag</a> is not set, or its <a>constructor document</a> is not equal to this
   {{DocumentOrShadowRoot}}'s <a>node document</a>, throw a "{{NotAllowedError}}" {{DOMException}}.</li>