fix(docs): update stats to 20 agents / 8 task types for v1.4.0

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Maleick

docs/index.html

@@ -251,11 +251,11 @@
     <div class="stat-label">avg issue → merged PR</div>
   </div>
   <div class="stat">
-    <span class="stat-num">6</span>
+    <span class="stat-num">20</span>
     <div class="stat-label">parallel agents</div>
   </div>
   <div class="stat">
-    <span class="stat-num">7</span>
+    <span class="stat-num">8</span>
     <div class="stat-label">task types classified</div>
   </div>
   <div class="stat">