Add Naver site verification meta tag

Added Naver site verification meta tag to the head section.

Signed-off-by: Jung Hyun Nam <[email protected]>

Author: rkttu

_layouts/default.html

@@ -5,6 +5,7 @@
   <meta charset="UTF-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1">
+  <meta name="naver-site-verification" content="eb91cf22d424a1851b3a3381363a703befedb86f" />
   <link rel="stylesheet" href="{{ '/assets/css/style.css?v=' | append: site.github.build_revision | relative_url }}">
   {% if site.title and site.title != page.title %}
   <title>{{ page.title }} - {{ site.title }}</title>
@@ -94,4 +95,4 @@ <h2 id="project_tagline">{{ site.description | default: site.github.project_tagl
   <script src="https://loopback.social/banner.js" defer></script>
 </body>
 
-</html>
+</html>