Add instructions for running using the Docker image

Author: amitkummer

readme.md

@@ -8,6 +8,27 @@ This is the source of Mesimä (pronounced Mesi-mah). It is a RESTful HTTP applic
 
 Mesimä was created with ❤️ using [Django Rest Framework](https://www.django-rest-framework.org/) and [PostgreSQL](https://www.postgresql.org/).
 
+# Quick Start
+
+Since our Docker image is hosted on Github's container registry, it is possible to run the app using Dokcer, **without even cloning** the repository.
+
+Note though, that the application will run using sqlite3 as it's database and *not* postgres. If you want to run the application using postgres,
+refer to [Delopment Instructions: Running the Application](#running-the-application).
+
+First, create the database file, and store it inside a named volume `mesima-data`:
+
+```
+docker run -e "DB=sqlite" --volume mesima-data:/backend --entrypoint "python" ghcr.io/amitkummer/mesima:latest manage.py migrate
+```
+
+Then, simply run the app:
+
+```
+docker run -e "DB=sqlite" -it -p 8080:8000 --volume mesima-data:/backend ghcr.io/amitkummer/mesima:latest
+```
+
+Open a web broswer and navigate to `https://localhost:8080/api`. You should see DRF's browseable api client.
+
 # Development Instructions
 
 ## Prerequisites