chore(website/page): add canonical

Author: kubosho

src/_layouts/website/page.html

@@ -18,6 +18,8 @@
 <meta name="twitter:site" content="@kubosho_">
 <meta name="twitter:creator" content="@kubosho_">
 <meta name="google-site-verification" content="ks4kX-pP-O3s-HHbW-QVvxv1GnAQ1hzM-HAyYrh_EIM">
+<link rel="canonical"
+    href="{{ config.baseUrl }}/{{ file.path | replace(config.structure['readme'],'') | replace('README.md','') | replace('readme.md','') | replace('.md','.html')}}">
 <link rel="preload" href="./assets/styles/page.css" as="style">
 <link rel="stylesheet" href="./assets/styles/page.css">
 <script>