Update header links (#1442)

Author: dgarcia360

sphinx_scylladb_theme/header.html

@@ -39,12 +39,12 @@
                 <a href="#" class="scylla-dropdown__title">Drivers <i class="chevron icon-arrow-dropdown"></i></a>
                 <ul class="menu scylla-dropdown__content">
                     <li>
-                        <a href="https://docs.scylladb.com/using-scylla/drivers/cql-drivers/">
+                        <a href="https://docs.scylladb.com/manual/stable/using-scylla/drivers/cql-drivers/">
                             <i class="icon-docs-nsql-guides"></i>CQL Drivers
                         </a>
                     </li>
                     <li>
-                        <a href="https://docs.scylladb.com/using-scylla/drivers/dynamo-drivers/">
+                        <a href="https://docs.scylladb.com/manual/stable/using-scylla/drivers/dynamo-drivers/">
                             <i class="icon-docs-alternator"></i>DynamoDB Drivers
                         </a>
                     </li>
@@ -86,4 +86,4 @@
         </div>
     </div>
     {% include 'side-nav-toggle.html' %}
-</header>
+</header>