Add medal and note icons to benchmark navigation

index.html

@@ -29,12 +29,12 @@
       <div><strong id="record-count">…</strong><span>runtime / codec configurations</span></div>
     </div>
     <nav class="tabs" aria-label="Benchmark views">
-      <button id="tab-overall" class="tab active" data-tab="overall" aria-current="page">Overall</button>
-      <button id="tab-dataset" class="tab" data-tab="dataset">By dataset</button>
-      <button id="tab-tradeoffs" class="tab" data-tab="tradeoffs">Trade-offs</button>
+      <button id="tab-overall" class="tab active" data-tab="overall" aria-current="page">🏅 Overall</button>
+      <button id="tab-dataset" class="tab" data-tab="dataset">🏅 By dataset</button>
+      <button id="tab-tradeoffs" class="tab" data-tab="tradeoffs">🏅 Trade-offs</button>
       <button id="tab-methods" class="tab" data-tab="methods">Methods</button>
       <button id="tab-operators" class="tab" data-tab="operators">Operators</button>
-      <button id="tab-about" class="tab" data-tab="about">About</button>
+      <button id="tab-about" class="tab" data-tab="about">📝 About</button>
     </nav>
     <div id="load-error" class="error-message" role="alert" hidden></div>
     <section id="results-view" aria-label="Compression results">