--- a/rdf-primer/index.html	Fri Feb 21 11:38:01 2014 +0000
+++ b/rdf-primer/index.html	Fri Feb 21 12:53:19 2014 +0100
@@ -657,7 +657,7 @@
     to exactly the same triples, and are thus logically equivalent. </p>
 
     <p>In this section we briefly introduce, through annotated examples, the following syntaxes:</p>
-<ul>
+<ol>
   <li>Turtle family of RDF languages
     (<a href="#section-n-triples">N-Triples</a>,
      <a href="#section-turtle">Turtle</a>,
@@ -666,8 +666,12 @@
   <li><a href="#section-json-ld">JSON-LD</a> (JSON-based);</li>
   <li><a href="#section-rdfa">RDFa</a> (for HTML and XML embedding);</li>
   <li><a href="#section-rdfxml">RDF/XML</a> (XML syntax for RDF). </li>
-</ul>
+</ol>
 
+<p class="note">
+Tip: we suggest to read Sec. 5.1 on the Turtle-related syntaxes and to read
+the sections on JSON-LD, RDFa and RDF/XML only when you are
+interested in that particular usage of RDF. </p>
 
 <section id="section-turtle-family">
 <h3>Turtle family of RDF languages</h3>