Add 63 samples, rename button

index.html

@@ -200,7 +200,7 @@
 Example: {"index":0,"tickInputs":[...],"gameType":"sheep-herding",...}'></textarea>
             <div class="controls" style="margin-top: 12px;">
               <button id="load-btn">Load &amp; Replay</button>
-              <button id="load-random-btn" class="btn-secondary">Load Random from HF</button>
+              <button id="load-random-btn" class="btn-secondary">Load Sample from HF</button>
             </div>
             <div id="load-status"></div>
           </div>