diff --git a/index.html b/index.html
index dd925b2..7441668 100644
--- a/index.html
+++ b/index.html
@@ -153,7 +153,7 @@
                         </a>
                         <ul>
                             <li>
-                                <a href="project/introduction.html" style="font-size:17px">Introduction</a>
+                                <a href="project/introduction.html" style="font-size:17px">Background</a>
                             </li>
 
                             <li>
@@ -168,7 +168,7 @@
                             </li>
                             
                             <li>
-                                <a href="project/future.html" style="font-size:17px">Future</a>
+                                <a href="project/conclusion and disscussion.html" style="font-size:17px">Conclusion and Discussion</a>
                             </li>
                         </ul>
                     </li>
@@ -190,7 +190,7 @@
 
                     <li>
                         <a href="hp/collaboration.html"style="font-size:19px">
-                            <i class="ti-heart"></i> Collaboration</a>
+                            <i class="ti-heart"></i> Human Practice</a>
                     </li>
 
                     <li>
@@ -374,4 +374,4 @@ <h1><a style="color: #343957; font-size: larger;"
          */
         createSnow('', 60);
     </script>
-</body>
+</body>
\ No newline at end of file