From 15bfb641263863bf85349c20ff964ea059978f30 Mon Sep 17 00:00:00 2001
From: Toni Kangas <kangasta@users.noreply.github.com>
Date: Wed, 16 Jul 2025 16:35:27 +0300
Subject: [PATCH] Add more text to data tier section

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 530e8e2..008aebc 100644
--- a/README.md
+++ b/README.md
@@ -106,7 +106,9 @@ The Django application is exposed using a [Gunicorn](https://gunicorn.org/) serv
 
 <!-- TODO: Intro to data tier -->
 
-The data tier of the application is provided by Postgres SQL database.
+The data tier of the application is provided by Postgres SQL database. The application interacts with the database using Object-Relational Mapping (ORM) of the Django web framework.
+
+The database is only exposed to the private network that connects the application containers to each other. This prevents external access to the database.
 
 <!-- TODO: move relevant parts from here to sections above and/or to README.md files in back-end and front-end directories.