Fix previously-broken section links in Understanding Techniques

Author: kfranqueiro

understanding/understanding-techniques.html

@@ -44,7 +44,7 @@ <h2>Sufficient Techniques</h2>
 					<p>From an evaluator's perspective: If web content implements the sufficient techniques for a given criterion correctly and it is <a href="conformance#accessibility-support">accessibility-supported</a> for the content's users, it conforms to that success criterion. (The converse is not true; if content does not implement these sufficient techniques, it does not necessarily fail the success criteria, as explained in <a href="#testing-techniques">Testing Techniques</a> below.)</p>
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-			<p>There may be other ways to meet success criteria besides the sufficient techniques in W3C's <a href="../Techniques/">Techniques for WCAG {{ versionDecimal }}</a> document, as explained in <a href="#understanding-techniques-othertechs">Other Techniques</a> below. <em>(See also <a href="#understanding-techniques-informative">Techniques are Informative</a> above.)</em></p>
+			<p>There may be other ways to meet success criteria besides the sufficient techniques in W3C's <a href="../Techniques/">Techniques for WCAG {{ versionDecimal }}</a> document, as explained in <a href="#other-techniques">Other Techniques</a> below. <em>(See also <a href="#techniques-are-informative">Techniques are Informative</a> above.)</em></p>
 			<section>
 				<h3>Numbered Lists, "AND"</h3>
 				<p> The W3C-documented sufficient techniques are provided in a numbered list where each list item provides a technique or combination of techniques that can be used to meet the success criterion. Where there are multiple techniques on a numbered list item connected by "AND" then all of the techniques must be used to be sufficient. For example, <a href="info-and-relationships#techniques">Sufficient Techniques for 1.3.1</a> has: "G115: Using semantic elements to mark up structure AND H49: Using semantic markup to mark emphasized or special text (HTML)".</p>
@@ -87,7 +87,7 @@ <h2>General and Technology-specific Techniques</h2>
 		<section>
 			<h2>Other Techniques</h2>
 			<p>In addition to the techniques in W3C's <a href="../Techniques/">Techniques for WCAG {{ versionDecimal }}</a> document, <em>there are other ways to meet WCAG {{ versionDecimal }} success criteria</em>. W3C's techniques are not comprehensive and may not cover newer technologies and situations.</p>
-			<p><em>web content does not have to use W3C's published techniques in order to conform to WCAG {{ versionDecimal }}. (See also <a href="understanding-techniques-informative">Techniques are Informative</a> above.)</em></p>
+			<p><em>web content does not have to use W3C's published techniques in order to conform to WCAG {{ versionDecimal }}. (See also <a href="#techniques-are-informative">Techniques are Informative</a> above.)</em></p>
 			<p>Content authors can develop different techniques. For example, an author could develop a technique for HTML5, <a href="https://www.w3.org/WAI/intro/aria">WAI-ARIA</a>, or other new technology. Other organizations may develop sets of techniques to meet WCAG {{ versionDecimal }} success criteria.</p>
 			<p>Any techniques can be sufficient if:</p>
 			<ul>