lib/asciidoctor/nist/reqt.rng in metanorma-nist-0.2.2 vs lib/asciidoctor/nist/reqt.rng in metanorma-nist-0.2.3

@@ -28,9 +28,12 @@
     <optional>
       <attribute name="unnumbered">
         <data type="boolean"/>
       </attribute>
     </optional>
+    <optional>
+      <attribute name="subsequence"/>
+    </optional>
     <attribute name="id">
       <data type="ID"/>
     </attribute>
     <optional>
       <attribute name="filename"/>