diff --git a/wiki/pages/contribution.html b/wiki/pages/contribution.html
index c25b5cb8b710b6d43457273a0db6f95c3c452a3b..4b1597f84c3a14f050dd206432c9343b2edf0e8f 100644
--- a/wiki/pages/contribution.html
+++ b/wiki/pages/contribution.html
@@ -38,6 +38,7 @@
     <ul>
       <li><a href="#Parts">Parts</a></li>
       <li><a href="#Treatment for IBD">Treatment for IBD</a></li>
+      <li><a href="#References">References</a></li>
     </ul>
   </div>
 
@@ -110,8 +111,10 @@
 
   <div class="row mt-4">
     <div class="col-lg-12">
-      <h3>References</h3>
-      <p>[1] Chen, Y., Gao, H., Zhao, J., Ross, R.P., Stanton, C., Zhang, H., Chen, W., & Yang, B. (2023). Exploiting lactic acid bacteria for inflammatory bowel disease: A recent update. Trends in Food Science & Technology.</p>
+      <h2 id="References">
+        <h2>References</h2>
+        <hr>
+        <p>[1] Chen, Y., Gao, H., Zhao, J., Ross, R.P., Stanton, C., Zhang, H., Chen, W., & Yang, B. (2023). Exploiting lactic acid bacteria for inflammatory bowel disease: A recent update. Trends in Food Science & Technology.</p>
       <p>[2] Wu, Xin et al. (2024). AAV-delivered muscone-induced transgene system for treating chronic diseases in mice via inhalation. Nature communications.</p>
     </div>
   </div>