typo fix

Author: byrTony-Frankzyq

funasr/index.html

@@ -1504,7 +1504,7 @@ <h4 class="table-title">Streaming ASR Performance (WER %)</h4>
           <table class="performance-table">
             <thead>
               <tr>
-                <th>Test set</th>
+                <th>Test Set</th>
                 <th>Seed-ASR</th>
                 <th>Fun-ASR-nano</th>
                 <th>Fun-ASR</th>