Add initial ADRs

docs/architecture-decisions/001-tome.txt

@@ -0,0 +1,30 @@
+Migrate to Tome
+
+Date: 2025-05-03
+
+Status: accepted
+
+Context:
+
+The previous version of the website is built with Sculpin, a static site generator written in PHP.
+
+Whilst it's a great project, I've felt that I've started to outgrow it in some ways and have been thinking about migrating to something else.
+
+I've been aware of Tome - https://www.drupal.org/project/tome - for a while and it seems like a logical choice for someone who likes both Drupal and static site generators.
+
+Decision:
+
+Migrate pages from Sculpin to Drupal/Tome.
+
+This can be done incrementally and different pages can be served from Sculpin or Tome based on the URL being visited.
+
+Consequences:
+
+I can continue to work with familiar tools - e.g. PHP, Drupal, PHPUnit - and don't need to migrate to (or back to) something different like Jekyll, Hugo or Astro.
+
+Tome will allow me to export the content from Drupal to a static website, the same as Sculpin does, so I'll continue to get the same benefits of a static website, such as performance, security and being easy to host and deploy.
+
+For consistency, a new theme would need to be created in Drupal so users aren't confused when being served pages from different sources. A lot of the same markup and CSS should be able to be reused.
+
+As new pages and sections are rebuilt in Drupal/Tome, I can serve these to users by updating the rules in Nginx and incrementally migrate rather than rebuilding and deploying everything at once - making it less risky.
+

docs/architecture-decisions/002-markdown.txt

@@ -0,0 +1,24 @@
+Use Markdown to add and edit content
+
+Date: 2025-05-23
+
+Status: accepted
+
+Context:
+
+Drupal has its own input filters for basic, full and restricted HTML, but doesn't support Markdown out of the box.
+
+There are contrib modules that can add this functionality, which would make it easier to migrate existing content from Sculpin.
+
+Decision:
+
+Install and use the Markdown Easy module - https://www.drupal.org/project/markdown_easy.
+
+I considered using the Markdown module - https://www.drupal.org/project/markdown - but this is more complicated to set up and there's no current Drupal 11 version.
+
+Consequences:
+
+Using the Markdown Easy module will make it easier to create content in Drupal and migrate pages from Sculpin which are written in Markdown.
+
+I can still use the standard Drupal text formats and CKEditor when needed.
+