Converted chapters to markdown and changed pages to vertical layout

test/static/chapter/test.md

@@ -0,0 +1,4 @@
+Test comment
+```php
+$test = 'test';
+```

test/static/code/test.php

@@ -1,4 +0,0 @@
-<?php
-
-// test comment
-$test = 'test';

test/static/code_table.html

@@ -1,4 +0,0 @@
-<div class="grid-code"><div class="doc"></div><div class="code"><pre><code class="language-php">&lt;?php
-
-</code></pre></div><div class="doc">this is a test</div><div class="code"><pre><code class="language-php">$test = 'some test code';
-</code></pre></div></div>

test/static/code_table.php

@@ -1,4 +0,0 @@
-<?php
-
-// this is a test
-$test = 'some test code';

test/static/config.php

@@ -4,13 +4,13 @@ use Apprentice\Page;
 
 return [
     'icon_dir' => __DIR__ . '/../icons',
-    'code_dir' => __DIR__ . '/code',
+    'chapter_dir' => __DIR__ . '/chapter',
     'templates_dir' => __DIR__ . '/templates',
     'output_dir' => '/tmp/apprentice_output',
     'files_dir' => __DIR__ . '/files',
     'pages' => [
         Page::create('index', 'index.phtml'),
-        Page::create('test', null, 'test.php', [
+        Page::create('test', null, 'test.md', [
             'title' => 'Test Title',
             'subtitle' => 'Test Subtitle',
             'description' => 'Test Description',

test/static/templates/default.phtml

@@ -1,3 +1,4 @@
 <div><?= escape($title) ?></div>
 <div><?= escape($subtitle) ?></div>
 <div><?= escape($description) ?></div>
+<div><?= escape($chapter) ?></div>