Made changes to links to techniques because of ID changes

a11y-meta-display-guide/2.0/draft/guidelines/index.html

@@ -1259,7 +1259,7 @@ <h4>Display techniques for navigation support</h4>
 			</section>
 		</section>
 		<section id="rich-content">
-			<h3 data-localization-id="charts-diagrams-formulas-title">Rich content</h3>
+			<h3 data-localization-id="Rich-content-title">Rich content</h3>
 
 			<div class="note">
 				<p>This key information can be hidden if metadata is
@@ -1364,11 +1364,11 @@ <h4>Display techniques for rich content support</h4>
 
 				<ul>
 					<li><a
-							href="../techniques/epub-metadata/index.html#charts-diagrams-and-formulas">EPUB
+							href="../techniques/epub-metadata/index.html#rich-content">EPUB
 							Accessibility: Rich content</a>
 					</li>
 					<li><a
-							href="../techniques/onix-metadata/index.html#charts-diagrams-and-formulas">ONIX:
+							href="../techniques/onix-metadata/index.html#rich-content">ONIX:
 							Rich content</a></li>
 				</ul>
 			</section>