fix typo in filter template

app/report/filter_template.xml

@@ -3,7 +3,7 @@
         <eq/>
         <ci id="output">y</ci>
         <apply>
-            <semantic>
+            <semantics>
                 <csymbol id="filter">IIR</csymbol>
                 <annotation-xml encoding="RDF/XML">
                     <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
@@ -67,7 +67,7 @@
 
                     </rdf:RDF>
                 </annotation-xml>
-            </semantic>
+            </semantics>
             <ci id="input">x</ci>
         </apply>
     </apply>