Update index.html

resolving potential mixed content (http vs https) errors

index.html

@@ -27,7 +27,7 @@ <h1>Ok data, let's dance!</h1>
         <p class="fs-5 col-md-8">OceanDataTools provides a suite of open-source tools for collecting and managing data created aboard oceanographic research vessels as well as manned, remotely operated and autonomously operated vehicles.</p>
 
         <div class="mb-5">
-          <a href="https://github.com/OceanDataTools" class="btn btn-primary btn-lg px-4">To The Repos <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-up-right" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M14 2.5a.5.5 0 0 0-.5-.5h-6a.5.5 0 0 0 0 1h4.793L2.146 13.146a.5.5 0 0 0 .708.708L13 3.707V8.5a.5.5 0 0 0 1 0v-6z"/>
+          <a href="https://github.com/OceanDataTools" class="btn btn-primary btn-lg px-4">To The Repos <svg xmlns="https://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-up-right" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M14 2.5a.5.5 0 0 0-.5-.5h-6a.5.5 0 0 0 0 1h4.793L2.146 13.146a.5.5 0 0 0 .708.708L13 3.707V8.5a.5.5 0 0 0 1 0v-6z"/>
           </svg></a>
         </div>