Prepare 2.6.4 release

material/base.html

@@ -36,7 +36,7 @@
         <meta name="lang:{{ key }}" content="{{ lang.t(key) }}">
       {% endfor %}
       <link rel="shortcut icon" href="{{ base_url }}/{{ config.theme.favicon }}">
-      <meta name="generator" content="mkdocs-{{ mkdocs_version }}, mkdocs-material-2.6.3">
+      <meta name="generator" content="mkdocs-{{ mkdocs_version }}, mkdocs-material-2.6.4">
     {% endblock %}
     {% block htmltitle %}
       {% if page and page.meta and page.meta.title %}

package.json

 {
   "name": "mkdocs-material",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "description": "A Material Design theme for MkDocs",
   "keywords": [
     "mkdocs",