Change doc of tablesorter to use 'sorter-false'

Documentation/Manual.rst

@@ -7558,7 +7558,7 @@ Example::
     10 {
       sql = SELECT id, CONCAT('form&form=person&r=', id) AS _Pagee, lastName, title FROM person
       head = <table class="table tablesorter tablesorter-filter tablesorter-pager tablesorter-column-selector" id="{{pageAlias:T}}-ts1">
-          <thead><tr><th>Id</th><th data-sorter="false" class="filter-false">Edit</th>
+          <thead><tr><th>Id</th><th class="filter-false sorter-false">Edit</th>
           <th>Name</th><th class="filter-select" data-placeholder="Select a title">Title</th>
           </tr></thead><tbody>
       tail = </tbody></table>