grammars/iho.rng in relaton-iho-1.7.2 vs grammars/iho.rng in relaton-iho-1.8.0

@@ -158,18 +158,24 @@
       <ref name="bibdata"/>
       <zeroOrMore>
         <ref name="termdocsource"/>
       </zeroOrMore>
       <optional>
+        <ref name="misccontainer"/>
+      </optional>
+      <optional>
         <ref name="boilerplate"/>
       </optional>
       <ref name="preface"/>
       <oneOrMore>
         <ref name="sections"/>
       </oneOrMore>
       <zeroOrMore>
         <ref name="annex"/>
       </zeroOrMore>
       <ref name="bibliography"/>
+      <zeroOrMore>
+        <ref name="indexsect"/>
+      </zeroOrMore>
     </element>
   </define>
 </grammar>