Editorial: include JSON Schema into spec (#928)

index.html

@@ -2969,9 +2969,9 @@ <h2>
       </h2>
       <p>
         Developers interested in validating <a>manifest</a> documents can find
-        an unofficial <a href="http://json.schemastore.org/web-manifest">JSON
+        an unofficial <a href="https://json.schemastore.org/web-manifest">JSON
         schema for the manifest format</a> at <a href=
-        "http://schemastore.org/json/">schemastore.org</a>. It is licensed
+        "https://schemastore.org/json/">schemastore.org</a>. It is licensed
         under <a href="https://www.apache.org/licenses/LICENSE-2.0.html">Apache
         2.0</a>. It is kindly maintained by <a href=
         "https://github.com/madskristensen">Mads Kristensen</a>. If you find
@@ -2980,6 +2980,12 @@ <h2>
         the <a href="https://github.com/SchemaStore/schemastore">SchemaStore
         repository</a> on GitHub.
       </p>
+      <aside class="note" title="">
+        <details>
+          <summary>Web Manifest JSON Schema</summary>
+          <pre class="json" data-include="https://json.schemastore.org/web-manifest"></pre>
+        </details>
+      </aside>
     </section>
     <section id="internationalization" class="appendix informative">
       <h2>