Update README, row level policies for collaborators and articles and fix minor issues

rest-api/db/migrations/20240720132802_exposed_views_functions.sql

@@ -143,15 +143,24 @@ BEGIN
 
   INSERT INTO internal.home (website_id, main_content)
   VALUES
-    (_website_id, '## Main content comes in here');
+    (_website_id, '
+## About
 
-  INSERT INTO internal.article (website_id, user_id, title, meta_description, meta_author, main_content)
-  VALUES
-    (_website_id, _user_id, 'First article', 'This is the first sample article', 'Author Name', '## First article'),
-    (_website_id, _user_id, 'Second article', 'This is the second sample article', 'Author Name', '## Second article');
+archtika is a FLOSS, modern, performant and lightweight CMS (Content Mangement System) in the form of a web application. It allows you to easily create, manage and publish minimal, responsive and SEO friendly blogging and documentation websites with official, professionally designed templates.
+
+It is also possible to add contributors to your sites, which is very useful for larger projects where, for example, several people are constantly working on the documentation.
+
+## How it works
+
+For the backend, PostgreSQL is used in combination with PostgREST to create a RESTful API. JSON web tokens along with row-level security control authentication and authorisation flows.
+
+The web application uses SvelteKit with SSR (Server Side Rendering) and Svelte version 5, currently in beta.
+
+NGINX is used to deploy the websites, serving the static site files from the `/var/www/archtika-websites` directory. The static files can be found in this directory via the path `<user_id>/<website_id>`, which is dynamically created by the web application.
+  ');
 
   INSERT INTO internal.footer (website_id, additional_text)
-  VALUES (_website_id, 'This website was created with archtika'); 
+  VALUES (_website_id, 'archtika is a free, open, modern, performant and lightweight CMS'); 
 
   website_id := _website_id;
 END;