Update '_layouts/home.html'

_layouts/home.html

@@ -25,11 +25,11 @@ layout: default
       {%- assign date_format = site.minima.date_format | default: "%b %-d, %Y" -%}
       {%- for post in posts -%}
       <li>
-        <h3>
+        <h2>
           <a class="post-link" href="{{ post.url | relative_url }}">
             {{ post.title | escape }}
           </a>
-        </h3>
+        </h2>
         <h4><span class="post-meta">{{ post.date | date: date_format }}</span></h4>
         {%- if site.show_excerpts -%}
           <blockquote>{{ post.excerpt }}</blockquote>