diff --git a/index.html b/index.html
index ca58a5f..2ad1dd9 100644
--- a/index.html
+++ b/index.html
@@ -104,8 +104,8 @@ <h3>Example URL formats</h3>
       </ul>
     </section>
   </section>
-  <section>
-    <h2 id="discovery">Discovering equivalent ActivityPub objects from HTML</h2>
+  <section id="discovery">
+    <h2>Discovering equivalent ActivityPub objects from HTML</h2>
     <p>This form of discovery, <dfn>forward discovery</dfn>, will identify an ActivityPub JSON-LD resource based on the HTML representation of the object.</p>
     <section>
       <h3>Content negotiation</h3>
@@ -408,8 +408,8 @@ <h4>Embedded JSON-LD failure</h4>
       </section>
     </section>
   </section>
-  <section>
-    <h2 id="reverse-discovery">Discovering HTML pages from ActivityPub objects</h2>
+  <section id="reverse-discovery">
+    <h2>Discovering HTML pages from ActivityPub objects</h2>
     <p>
         <dfn>Reverse discovery</dfn>, in this report, means identifying the HTML
         page that represents the same object as an ActivityPub JSON-LD object. This is necessary for user stories like creating a link to an actor in microsyntax.
@@ -639,8 +639,8 @@ <h4>Webfinger failure</h4>
       </section>
     </section>
   </section>
-  <section>
-    <h2 id="author-discovery">Discovering ActivityPub authors from HTML</h2>
+  <section id="author-discovery">
+    <h2>Discovering ActivityPub authors from HTML</h2>
     <p>This section describes various methods for determining the ActivityPub ID of the author of an object represented by an HTML page.</p>
     <section>
       <h3>Discover equivalent object</h3>
@@ -724,7 +724,7 @@ <h3>Embedded JSON-LD</h3>
       <h3>OpenGraph</h3>
     </section>
   </section>
-  <section>
+  <section id="consumers">
     <h2>Best practices for consumers</h2>
     <section>
       <h3>Two-way confirmation</h3>
@@ -745,7 +745,7 @@ <h4>Discovering HTML pages</h4>
       <h3>Handling multiple results</h3>
     </section>
   </section>
-  <section>
+  <section id="publishers">
     <h2>Best practices for publishers</h2>
     <section>
       <h3>Two-way confirmation</h3>