update contact and ack

index.html

@@ -62,11 +62,14 @@
           <a class="navbar-item" href="https://unrealcv.org">
             UnrealCV
           </a>
+          <a class="navbar-item" href="https://github.com/unrealcv/papers-with-unrealcv">
+            Papers with UnrealCV
+          </a>
           <a class="navbar-item" href="https://unrealzoo.notion.site/scene-gallery">
-            Scene Gallery
+            UnrealZoo Scene Gallery
           </a>
           <a class="navbar-item" href="https://github.com/UnrealZoo/gym-unrealzoo">
-            Gym Interface
+            UnrealZoo Gym
           </a>
           <a class="navbar-item" href="https://github.com/UnrealTracking">
             Agents
@@ -471,6 +474,24 @@ <h2 class="title">BibTeX</h2>
   </div>
 </section>
 
+<section class="section" id="Contact">
+  <div class="container is-max-desktop content">
+    <h2 class="title">Contact</h2>
+    <p>
+      If you have any suggestion or interested in using or contributing to UnrealZoo, please contact <a href="mailto:[email protected]">[email protected]</a>
+    </p>
+  </div>
+</section>
+
+<section class="section" id="ack">
+  <div class="container is-max-desktop content">
+    <h2 class="title">Acknowledgments</h2>
+    <p>
+        We would like to thank the Unreal Engine community for providing the engine and the Unreal Engine Marketplace and its contributors for the sharing assets.
+        We also thank <a href="https://weichaoqiu.com/">Weichao Qiu</a> and other active developers for providing valuable supports in the improvements of UnrealCV plugin.
+    </p>
+  </div>
+</section>
 
 <footer class="footer">
   <div class="container">