Use four spaces in frontmatter blocks

source/_talks/building-static-websites-sculpin.md

@@ -2,45 +2,45 @@
 title: Building Static Websites with Sculpin
 description: How to use Sculpin to generate static HTML websites.
 speakerdeck:
-  id: 6c9c4be1a1344f1291ff13a391674a66
-  ratio: "1.77777777777778"
-  url: https://speakerdeck.com/opdavies/building-static-websites-with-sculpin
+    id: 6c9c4be1a1344f1291ff13a391674a66
+    ratio: "1.77777777777778"
+    url: https://speakerdeck.com/opdavies/building-static-websites-with-sculpin
 code: https://github.com/opdavies/sculpin-demo
 tags: [meetups, phpsw, sculpin]
 tweets: yes
 video:
-  type: youtube
-  id: xRTiWR9nBSA
+    type: youtube
+    id: xRTiWR9nBSA
 events:
-  -
-    name: PHP South West
-    date: 2024-02-14
-    location: Bristol, UK
-    url: https://www.meetup.com/php-sw/events/298880313
-  -
-    name: GroningenPHP
-    date: 2021-12-09
-    location: Groningen, Netherlands
-    url: https://www.meetup.com/GroningenPHP/events/281648855
-    online: true
-  -
-    name: PHP North West (PHPNW)
-    date: 2021-09-07
-    location: Manchester, UK
-    url: https://www.phpnw.org.uk
-    online: true
-  -
-    name: Drupal Yorkshire
-    date: 2021-08-19
-    location: Leeds, UK
-    url: https://www.meetup.com/DrupalYorkshire/events/280100968
-    online: true
-  -
-    name: PHP South West
-    location: Bristol, UK
-    date: 2015-10-14
-    url: https://phpsw.uk/events/2015-10-lightning-talks
-    joindin: https://joind.in/talk/view/15486
+    -
+        name: PHP South West
+        date: 2024-02-14
+        location: Bristol, UK
+        url: https://www.meetup.com/php-sw/events/298880313
+    -
+        name: GroningenPHP
+        date: 2021-12-09
+        location: Groningen, Netherlands
+        url: https://www.meetup.com/GroningenPHP/events/281648855
+        online: true
+    -
+        name: PHP North West (PHPNW)
+        date: 2021-09-07
+        location: Manchester, UK
+        url: https://www.phpnw.org.uk
+        online: true
+    -
+        name: Drupal Yorkshire
+        date: 2021-08-19
+        location: Leeds, UK
+        url: https://www.meetup.com/DrupalYorkshire/events/280100968
+        online: true
+    -
+        name: PHP South West
+        location: Bristol, UK
+        date: 2015-10-14
+        url: https://phpsw.uk/events/2015-10-lightning-talks
+        joindin: https://joind.in/talk/view/15486
 ---
 
 [Sculpin][0] is a static site generator written in PHP. It converts Markdown