update SHACL 1.2 Core to refer to this NOTE

Author: nicholascar

shacl12-core/index.html

@@ -118,6 +118,12 @@
 						href: "https://w3c.github.io/data-shapes/shacl12-sparql/",
 						status: "ED",
 						publisher: "W3C",
+					},
+					"shacl12-shacl-shacl": {
+						title: "SHACL 1.2 SHACL-SHACL",
+						href: "https://w3c.github.io/data-shapes/shacl12-shacl-shacl/",
+						status: "ED",
+						publisher: "W3C",
 					}
 				}
 			};
@@ -372,7 +378,6 @@
 		<section id="sotd">
 		</section>
 
-
 		<section class="introductory">
 			<h2>Document Outline</h2>
 			<p>
@@ -4279,15 +4284,19 @@ <h2>Summary of SHACL Syntax Rules</h2>
 			</table>
 		</section>
 
-		<section id="shacl-shacl" class="appendix">
+		<section id="shacl-shacl" class="appendix informative">
 			<h2>SHACL Shapes to Validate Shapes Graphs</h2>
 			<p>
-        		The shapes graph available at <a href="https://github.com/w3c/data-shapes/blob/gh-pages/shacl12-vocabularies/shacl-shacl.ttl">http://www.w3.org/ns/shacl-shacl</a>
-				is intended to enforce many of the syntactic constraints related to SHACL Core in this specification. 
-				As such, it can be understood as a machine-readable version of a subset of those constraints.
+				The SHACL 1.2 SHACL-SHACL Note [[shacl12-shacl-shacl]] describes a SHACL graph that can be used to
+				validate other SHACL Shapes graphs and thus may enforce many of the syntactic constraints related to
+				RDF data aiming to conform to SHACL Core in this specification.
+			</p>
+			<p>
+				The SHACL graph is available as an RDF resource at <a href="http://www.w3.org/ns/shacl-shacl">http://www.w3.org/ns/shacl-shacl</a>,
+				as indicated in the Note.
 			</p>
 			<p class="todo">
-				TODO: Replace the hyperlink to the official site once that has been updated.
+				TODO: Replace the hyperlink to the NOTE with a reference once that has been created.
 			</p>
 		</section>