fix theme color

Author: Lausselloic

_includes/favicons.html

@@ -6,4 +6,4 @@
 <link rel="mask-icon" href="{{ site.baseurl }}/assets/img/favicons/safari-pinned-tab.svg" color="#563d7c">
 <link rel="icon" href="{{ site.baseurl }}/favicon.ico">
 <meta name="msapplication-config" content="{{ site.baseurl }}/assets/img/favicons/browserconfig.xml">
-<meta name="theme-color" content="#563d7c">
+<meta name="theme-color" content="#000000">