Add README

README.md

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+# ladylilia.com
+
+## Project structure
+
+* `api` - Flask application implementing RESTful API for querying/manipulating database of quotes
+* `cms` - Grav CMS (Content Management System)
+* `ng-app` - Angular application for browsing quotes
+* `nginx` - Configuration of NGINX web server
+
+## Deployment
+
+This project consists of 3 container images (`api`, `cms` and `nginx`), that depend on each other - they need to run simultaneously and share certain data between themselves.
+
+Easiest way how to manage that is using `docker-compose`. Just copy `docker-compose.yaml.example` into `docker-compose.yaml`, make necessary adjustments and fire it all up with:
+
+```BASH
+docker-compose up -d
+```
+
+## API key generation
+
+API key is needed for `POST`, `PUT` and `DELETE` API methods.
+
+If the `api` container is running, the key can be generated like this:
+
+```BASH
+docker exec $API_CONTAINER_NAME python generate_api_key.py $USERNAME $EXPIRATION_TIME_IN_SECONDS
+```