Add intro image block

source/_includes/post/intro-image.html.twig

@@ -0,0 +1,5 @@
+{% if page.blocks.intro_image %}
+    <div class="has-text-centered">
+        {{ page.blocks.intro_image|raw }}
+    </div>
+{% endif %}

source/_layouts/post.html.twig

@@ -2,6 +2,7 @@
 
 {% block content_wrapper %}
     {% include 'post/header' %}
+    {% include 'post/intro-image' %}
 
     {% block content %}{% endblock %}
 

source/_posts/2017-05-15-drupalcamp-bristol-tickets-sessions-sponsors.md

@@ -15,11 +15,13 @@ meta:
         type: website
 slug: drupalcamp-bristol-early-bird-tickets-sessions-sponsors
 ---
-{% block excerpt %}
+{% block intro_image %}
 <div class="has-text-centered">
     <img src="/assets/images/blog/drupalcamp-bristol-17-logo.jpg" alt="DrupalCamp Bristol 2017 logo">
 </div>
+{% endblock %}
 
+{% block excerpt %}
 In less than two months time, [DrupalCamp Bristol][0] will be back for our third year! (July seems to come around quicker each year). This is this year’s schedule and venues:
 
 + 30th June - CXO (Business) day - [Watershed][1]
@@ -28,8 +30,6 @@ In less than two months time, [DrupalCamp Bristol][0] will be back for our third
 {% endblock %}
 
 {% block content %}
-<img src="/assets/images/blog/drupalcamp-bristol-17-logo.jpg" alt="DrupalCamp Bristol 2017 logo" class="is-centered">
-
 In less than two months time, [DrupalCamp Bristol][0] will be back for our third year! (July seems to come around quicker each year). This is this year’s schedule and venues:
 
 + 30th June - CXO (Business) day - [Watershed][1]

source/_posts/2017-06-09-introducing-the-drupal-meetups-twitterbot.md

@@ -4,15 +4,15 @@ tags:
     - twitter
     - php
 ---
-{% block excerpt %}
+{% block intro_image %}
 <img src="/assets/images/blog/drupal-meetups-twitterbot.png" alt="" class="is-centered">
+{% endblock %}
 
+{% block excerpt %}
 The [Drupal Meetups Twitterbot][0] is a small project that I worked on a few months ago, but hadn't got around to promoting yet. It’s intention is to provide [one Twitter account][1] where people can get the up to date news from various Drupal meetups.
 {% endblock %}
 
 {% block content %}
-<img src="/assets/images/blog/drupal-meetups-twitterbot.png" alt="" class="is-centered">
-
 The [Drupal Meetups Twitterbot][0] is a small project that I worked on a few months ago, but hadn't got around to promoting yet. It’s intention is to provide [one Twitter account][1] where people can get the up to date news from various Drupal meetups.
 
 It works by having a whitelist of [Twitter accounts and hashtags][2] to search for, uses [Codebird][3] to query the Twitter API and retweets any matching tweets on a scheduled basis.

source/_posts/2017-07-13-publishing-sculpin-sites-with-github-pages.md

@@ -10,29 +10,21 @@ meta:
             height: 200
             width: 451
 ---
-{% block excerpt %}
-<div class="has-text-centered">
-    <img
-        src="/assets/images/blog/jackson-octocat.png"
-        alt=""
-        style="margin-bottom: 20px"
-    >
-</div>
+{% block intro_image %}
+<img
+    src="/assets/images/blog/jackson-octocat.png"
+    alt=""
+    class="mb-2"
+>
+{% endblock %}
 
+{% block excerpt %}
 Earlier this week I moved this site from my personal Linode server to [GitHub Pages][0].
 
 This made sense as I already kept the source code in [on GitHub][1], the issue was that GitHub Pages doesn’t know how to dynamically parse and generate a Sculpin site like it does with some other static site generators. It can though parse and serve HTML files, which is what Sculpin generates. It’s just a case of how those files are added to GitHub.
 {% endblock %}
 
 {% block content %}
-<div class="has-text-centered">
-    <img
-        src="/assets/images/blog/jackson-octocat.png"
-        alt=""
-        style="margin-bottom: 20px"
-    >
-</div>
-
 Earlier this week I moved this site from my personal Linode server to [GitHub Pages][0].
 
 This made sense as I already kept the source code in [on GitHub][1], the issue was that GitHub Pages doesn’t know how to dynamically parse and generate a Sculpin site like it does with some other static site generators. It can though parse and serve HTML files, which is what Sculpin generates. It’s just a case of how those files are added to GitHub.

source/blog.html

@@ -17,6 +17,8 @@ use: [posts]
                     title_tag: 'h2'
                 }) }}
 
+                {% include 'post/intro-image' with { page: post } %}
+
                 {% if post.blocks.excerpt %}
                     {{ post.blocks.excerpt|raw }}
                 {% else %}