minimal Introduction section

nicholascar · nicholascar · commit 972af85db390 · 2025-07-30T12:04:29.000+10:00
diff --git a/shacl12-overview/index.html b/shacl12-overview/index.html
@@ -347,7 +347,7 @@
 	<body>
 		<section id="abstract">
 			<p>
-				The <em>Shapes Constraint Language</em> "SHACL" is a language for validating RDF graphs against a set
+				The <em>Shapes Constraint Language</em>, "SHACL", is a language for validating RDF graphs against a set
 				of conditions. SHACL has a core specification, extensions for related query languages, User Interface
 				generation, rule-based reasoning and a data profiling mechanism. This document overviews all these
 				parts of SHACL and serves as an introduction to all of them and related on-going work such as libraries
@@ -362,7 +362,12 @@
 
 		<section id="introduction">
 			<h2>Introduction</h2>
-			<p class="todo">TODO</p>
+			<p>
+				This document provides a non-normative, high-level, overview of the various Shapes Constraint Language (SHACL) documents.
+			</p>
+			<p>
+				The second iteration of the World Wide Web Consortium's <a href="https://www.w3.org/groups/wg/data-shapes/">Data Shapes Working Group</a> aimed to "...update data shapes standards in line with the versions of core Semantic Web standards that cater for RDF-star and to extend the applications of data shapes with new packaging and use specifications". The outcome of the Working Group's operations was a set of specifications - W3C 'Recommendations' - that cover core SHACL elements, extended ones and SHACL functions beyond RDF validation, such as User Interface generation. The Overview section below lists all the Working Group specifications and they are also listed in each specification's Introduction too.
+			</p>
 		</section>
 
 		<section id="governance">
@@ -410,9 +415,5 @@ <h2>Changes between SHACL 1.0 Core and SHACL 1.2 Core</h2>
 				A reference to this Note is retained in SHACL 1.2 Core.
 			</p>
 		</section>
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 	</body>
 </html>
