Update index.html

blog/index.html

@@ -4,6 +4,7 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width,initial-scale=1">
 <meta name="generator" content="Docusaurus v2.0.0-beta.18">
+<meta property="og:image" content="https://raw.githubusercontent.com/AliAkbarMoeini/docusaurus-demo/master/static/img/preview-350.png"/>
 <link rel="alternate" type="application/rss+xml" href="/docusaurus-demo/blog/rss.xml" title="AliAkbar Moeini RSS Feed">
 <link rel="alternate" type="application/atom+xml" href="/docusaurus-demo/blog/atom.xml" title="AliAkbar Moeini Atom Feed"><title data-rh="true">Blog | AliAkbar Moeini</title><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://aliakbarmoeini.github.io/docusaurus-demo/blog/"><meta data-rh="true" name="docusaurus_locale" content="fa"><meta data-rh="true" name="docsearch:language" content="fa"><meta data-rh="true" property="og:title" content="Blog | AliAkbar Moeini"><meta data-rh="true" name="description" content="Blog"><meta data-rh="true" property="og:description" content="Blog"><meta data-rh="true" name="docusaurus_tag" content="blog_posts_list"><meta data-rh="true" name="docsearch:docusaurus_tag" content="blog_posts_list"><link data-rh="true" rel="icon" href="/docusaurus-demo/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://aliakbarmoeini.github.io/docusaurus-demo/blog/"><link data-rh="true" rel="alternate" href="https://aliakbarmoeini.github.io/docusaurus-demo/blog/" hreflang="fa"><link data-rh="true" rel="alternate" href="https://aliakbarmoeini.github.io/docusaurus-demo/blog/" hreflang="x-default"><link rel="stylesheet" href="/docusaurus-demo/assets/css/styles.68c855ad.css">
 <link rel="preload" href="/docusaurus-demo/assets/js/runtime~main.fe719533.js" as="script">
@@ -15,4 +16,4 @@
 <script src="/docusaurus-demo/assets/js/runtime~main.fe719533.js"></script>
 <script src="/docusaurus-demo/assets/js/main.5b476c57.js"></script>
 </body>
-</html>
+</html>