fix markup error

spec.html

@@ -3901,7 +3901,7 @@ <h1>Well-Known Intrinsic Objects</h1>
     <h1>ECMAScript Specification Types</h1>
     <p>A specification type corresponds to meta-values that are used within algorithms to describe the semantics of ECMAScript language constructs and ECMAScript language types. The specification types include Reference, List, Completion Record, Property Descriptor, Environment Record, Abstract Closure, and Data Block. Specification type values are specification artefacts that do not necessarily correspond to any specific entity within an ECMAScript implementation. Specification type values may be used to describe intermediate results of ECMAScript expression evaluation but such values cannot be stored as properties of objects or values of ECMAScript language variables.</p>
 
-    <emu-clause id="sec-list-and-record-specification-type"
+    <emu-clause id="sec-list-and-record-specification-type">
       <h1>The List and Record Specification Types</h1>
       <p>The <dfn variants="Lists">List</dfn> type is used to explain the evaluation of argument lists (see <emu-xref href="#sec-argument-lists"></emu-xref>) in `new` expressions, in function calls, and in other algorithms where a simple ordered list of values is needed. Values of the List type are simply ordered sequences of list elements containing the individual values. These sequences may be of any length. The elements of a list may be randomly accessed using 0-origin indices. For notational convenience an array-like syntax can be used to access List elements. For example, _arguments_[2] is shorthand for saying the 3<sup>rd</sup> element of the List _arguments_.</p>
       <p>When an algorithm iterates over the elements of a List without specifying an order, the order used is the order of the elements in the List.</p>