diff --git a/migration/index.html b/migration/index.html
index ef6e340..01116ca 100644
--- a/migration/index.html
+++ b/migration/index.html
@@ -134,42 +134,6 @@
 
 
 
-  <nav class="bd-subnavbar py-2" aria-label="Secondary navigation">
-  <div class="container-xxl d-flex align-items-md-center">
-    <form class="bd-search position-relative me-auto">
-      <input type="search" class="form-control" id="search-input" placeholder="Search docs..." aria-label="Search docs for..." autocomplete="off" data-bd-docs-version="5.1">
-    </form>
-
-    <div class="dropdown ms-3">
-  <button class="btn btn-bd-light dropdown-toggle" id="bd-versions" data-bs-toggle="dropdown" aria-expanded="false" data-bs-display="static">
-    <span class="d-none d-lg-inline">Bootstrap</span> v5.1
-  </button>
-  <ul class="dropdown-menu dropdown-menu-end" aria-labelledby="bd-versions">
-    <li><a class="dropdown-item current" aria-current="true" href="../index.html">Latest (5.1.x)</a></li>
-    <li><hr class="dropdown-divider"></li>
-    <li><a class="dropdown-item" href="../../4.6/index.html">v4.6.x</a></li>
-    <li><a class="dropdown-item" href="../../3.4/index.html">v3.4.1</a></li>
-    <li><a class="dropdown-item" href="../../../2.3.2/index.html">v2.3.2</a></li>
-    <li><hr class="dropdown-divider"></li>
-    <li><a class="dropdown-item" href="../../versions/index.html">All versions</a></li>
-  </ul>
-</div>
-
-
-    <button class="btn bd-sidebar-toggle d-md-none py-0 px-1 ms-3 order-3 collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#bd-docs-nav" aria-controls="bd-docs-nav" aria-expanded="false" aria-label="Toggle docs navigation">
-      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" class="bi bi-expand" fill="currentColor" viewBox="0 0 16 16">
-  <title>Expand</title>
-  <path fill-rule="evenodd" d="M1 8a.5.5 0 0 1 .5-.5h13a.5.5 0 0 1 0 1h-13A.5.5 0 0 1 1 8zM7.646.146a.5.5 0 0 1 .708 0l2 2a.5.5 0 0 1-.708.708L8.5 1.707V5.5a.5.5 0 0 1-1 0V1.707L6.354 2.854a.5.5 0 1 1-.708-.708l2-2zM8 10a.5.5 0 0 1 .5.5v3.793l1.146-1.147a.5.5 0 0 1 .708.708l-2 2a.5.5 0 0 1-.708 0l-2-2a.5.5 0 0 1 .708-.708L7.5 14.293V10.5A.5.5 0 0 1 8 10z"/>
-</svg>
-
-      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" class="bi bi-collapse" fill="currentColor" viewBox="0 0 16 16">
-  <title>Collapse</title>
-  <path fill-rule="evenodd" d="M1 8a.5.5 0 0 1 .5-.5h13a.5.5 0 0 1 0 1h-13A.5.5 0 0 1 1 8zm7-8a.5.5 0 0 1 .5.5v3.793l1.146-1.147a.5.5 0 0 1 .708.708l-2 2a.5.5 0 0 1-.708 0l-2-2a.5.5 0 1 1 .708-.708L7.5 4.293V.5A.5.5 0 0 1 8 0zm-.5 11.707l-1.146 1.147a.5.5 0 0 1-.708-.708l2-2a.5.5 0 0 1 .708 0l2 2a.5.5 0 0 1-.708.708L8.5 11.707V15.5a.5.5 0 0 1-1 0v-3.793z"/>
-</svg>
-
-    </button>
-  </div>
-</nav>
 
 
   <div class="container-xxl my-md-4 bd-layout">