<head>

<meta http-equiv="Content-Type" content="text/html" charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
{% if page.title %}{% assign page_title = page.title | escape %}{% else %}{% assign page_title = site.title | escape %}{% endif %}{% assign page_description = page.excerpt | default: site.description | strip_html | normalize_whitespace | truncate: 160 | escape %}
<title>{{ page_title }}</title>
<meta name="description" content="{{ page_description }}">
<meta name="HandheldFriendly" content="True" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="referrer" content="origin" />
{% assign site_name = site.url | absolute_url | remove:'http://' | remove:'https://' | remove:'www.' | split:'/' | first | split:':' | first | append: site.baseurl %}{% assign site_url = site.url  | append: site.baseurl %}{% if page.date %}{% assign page_date = page.date | date_to_xmlschema %}{% endif %}{% assign page_url = page.url | replace:'index.html','' | absolute_url %}{% if page.image %}{% assign page_image = page.image | prepend: site.baseurl | prepend: site.url %}{% else %}{% assign page_image = site.logo | prepend: site.baseurl | prepend: site.url %}{% endif %}{% if site.author.name %}{% assign page_author = site.author.name %}{% else %}{% assign page_author = site_name %}{% endif %}
<meta property="og:site_name" content="{{ site_name }}" />
<meta property="og:type" content="{% if page.title and page.layout != 'author' %}article{% elsif page.layout == 'author' %}profile{% else %}website{% endif %}" />
<meta property="og:title" content="{{ page_title }}" />
<meta property="og:description" content="{{ page_description }}" />
<meta property="og:url" content="{{ page_url }}" />
<meta property="og:image" content="{{ page_image }}">
{% if page.date %}
<meta property="article:published_time" content="{{ page_date }}" />
<meta property="article:modified_time" content="{{ page_date }}" />
{% endif %}
<meta name="twitter:card" content="summary" />
<meta name="twitter:title" content="{{ page_title }}" />
<meta name="twitter:description" content="{{ page_description }}" />
<meta name="twitter:url" content="{{ page_url }}" />
<meta name="twitter:image" content="{{ page_image }}" />
<meta name="twitter:label1" content="Written by" />
<meta name="twitter:data1" content="{{ page_author }}" />

<link rel="stylesheet" href="{{ "/assets/main.css" | relative_url }}">
<link rel="canonical" href="{{ page.url | replace:'index.html','' | absolute_url }}">
<link rel="alternate" type="application/rss+xml" title="{{ site.title | escape }}" href="{{ "/feed.xml" | relative_url }}">

<script type="text/javascript" src="{{ "/assets/js/jquery-3.2.1.min.js"  | relative_url }}" />
<script type="application/ld+json">
      {
      "@context": "https://schema.org",   
      "@type": "{% if page.title and page.layout != 'author' %}Article{% elsif page.layout == 'author' %}Person{% else %}Website{% endif %}",
              {% if page.date %}
              "publisher": {
              "@type": "Website",
              "name": "{{ site_name }}",
              "url": "{{ site_url }}"
      },
      "author": {
              "@type": "Person",
              "name": "{{ page_author }}",
              "url": "{{ "/author/" | absolute_url }}"
      },
      "headline": "{{ page_title }}",         
      "datePublished": "{{ page_date }}",
      "dateModified": "{{ page_date }}",
              {% endif %}
              "name": "{% if page.title and page.layout != 'author' %}{{ page_title }}{% elsif page.layout == 'author' %}{{ page_author }}{% else %}{{ site_name }}{% endif %}",
              "url": "{{ page_url }}",
      "image":"{{ page_image }}",
      "description": "{{ page_description }}"
      }
</script>
<script type="text/javascript"></script>
{% if jekyll.environment == 'production' and site.google_analytics %}
{% include google-analytics.html %}
{% endif %}

</head>