Add issue marker for #11 and note to Security Considerations.

spec/index.html

@@ -1306,6 +1306,16 @@ <h2>Security Considerations</h2>
      in [[[UNICODE-SECURITY]]] [[UNICODE-SECURITY]] and
      [[[RFC3987]]] [[RFC3987]] Section 8.
   </p>
+
+  <p class="note">These considerations are a more generic form
+    of Security Considerations for [[RDF12-TURTLE]], [[RDF12-TRIG]], [[RDF12-N-TRIPLES]],
+    and [[RDF12-N-QUADS]].</p>
+
+  <p class="issue" data-number="11">
+    There's a concern that no implementations can be compliant as it is virtually
+    impossible forimplementations to ensure that malignant strings
+    cannot be used to mislead the reader.
+  </p>
 </section>
 
 <section id="internationalization">
@@ -1428,6 +1438,8 @@ <h3>Acknowledgements for RDF 1.2</h3>
     </p>
 
     <p data-include="common/participants.html"></p>
+
+    <p class="ednote">Recognize members of the Task Force? Not an easy to find list of contributors.</p>
   </section>
 </section>