chore: remove iso references chapter

Author: arnoweiss

index.html

@@ -85,15 +85,12 @@ <h2>Status of this document</h2>
     </p>
 </section>
 
-<section class="notoc" data-include="specifications/common/introduction.md" data-include-format="markdown">
+<section data-include="specifications/common/introduction.md" data-include-format="markdown">
 </section>
 
 <section data-include="specifications/common/scope.md" data-include-format="markdown">
 </section>
 
-<section data-include="specifications/common/normative.references.md" data-include-format="markdown">
-</section>
-
 <section data-include="specifications/common/terminology.md" data-include-format="markdown">
 </section>