Update shacl12-core/index.html

Co-authored-by: Ted Thibodeau Jr <[email protected]>

Author: YoucTagh

shacl12-core/index.html

@@ -1114,7 +1114,7 @@ <h2>Shapes and Constraints</h2>
 			<p>
 				The following informal diagram provides an overview of some of the key classes in the SHACL vocabulary.
 				Each box represents a class.
-				The content of the boxes under the class name lists a small subset of the frequently used properties
+				The boxes under the class name list a small subset of the frequently used properties
 				that instances of these classes may have, together with their value types.
 				The arrows indicate <code>rdfs:subClassOf</code> triples.
 			</p>