README updated

Author: ciur

README.md

@@ -32,7 +32,7 @@ Papermerge is perfect tool for long term storage of your documents.
 * Document Versioning
 * Tags - assign colored tags to documents or folders
 * Documents and Folders - users can organize documents in folders
-* Document Types
+* Document Types (i.e. Categories)
 * Custom Fields (metadata) per document type
 * Multi-User
 * Page Management - delete, reorder, cut, move, extract pages
@@ -41,144 +41,28 @@ Papermerge is perfect tool for long term storage of your documents.
 
 Papermerge DMS documentation is available at [https://docs.papermerge.io](https://docs.papermerge.io/)
 
-## Docker
+## Start with Docker
 
-In order to start Papermerge REST API server as docker image use following command:
+In order to start Papermerge App with the most basic setup use following command:
 
     docker run -p 8000:80 \
         -e PAPERMERGE__SECURITY__SECRET_KEY=abc \
         -e PAPERMERGE__AUTH__PASSWORD=123 \
-        papermerge/papermerge:3.0.3
+        papermerge/papermerge:3.3.1
 
+For more info about various docker compose scenarios check [documentation page](https://docs.papermerge.io/3.3/setup/docker-compose/).
 
-If you want initial superuser to have another username (e.g. john), use
-`PAPERMERGE__AUTH__USERNAME` environment variable:
 
-    docker run -p 8000:80 \
-        -e PAPERMERGE__SECURITY__SECRET_KEY=abc \
-        -e PAPERMERGE__AUTH__PASSWORD=123 \
-        -e PAPERMERGE__AUTH__USERNAME=john \
-        papermerge/papermerge:3.0.3
-
-Note that above docker command start only web UI. In order to run OCR on the documents you need at least one
-worker instance.
-
-## Docker Compose
-
-Here is an example of complete setup with web ui, one worker (which performs OCR), and PostgreSQL database for
-storing data:
-
-      version: "3.9"
-
-      x-backend: &common
-        image: papermerge/papermerge:3.0.3
-        environment:
-            PAPERMERGE__SECURITY__SECRET_KEY: 12345
-            PAPERMERGE__AUTH__USERNAME: john
-            PAPERMERGE__AUTH__PASSWORD: hohoho
-            PAPERMERGE__DATABASE__URL: postgresql://scott:tiger@db:5432/mydatabase
-            PAPERMERGE__REDIS__URL: redis://redis:6379/0
-        volumes:
-          - index_db:/core_app/index_db
-          - media:/core_app/media
-      services:
-        web:
-          <<: *common
-          ports:
-           - "12000:80"
-          depends_on:
-            - redis
-            - db
-        worker:
-          <<: *common
-          command: worker
-        redis:
-          image: redis:6
-        db:
-          image: bitnami/postgresql:16.1.0
-          volumes:
-            - postgres_data:/var/lib/postgresql/data/
-          environment:
-            POSTGRESQL_USER: scott
-            POSTGRESQL_PASSWORD: tiger
-            POSTGRESQL_POSTGRES_PASSWORD: tiger
-            POSTGRESQL_DATABASE: mydatabase
-      volumes:
-        postgres_data:
-        index_db:
-        media:
-
-Open your web browser and point it to http://localhost:12000.
-
-Following docker compose file starts Papermerge (web UI and one worker) with
-MariaDB as database and Solr as search engine backend:
-
-    version: "3.9"
-
-    x-backend: &common
-      image: papermerge/papermerge:3.0.3
-      environment:
-          PAPERMERGE__SECURITY__SECRET_KEY: 1234  # top secret
-          PAPERMERGE__AUTH__USERNAME: eugen
-          PAPERMERGE__AUTH__PASSWORD: 1234
-          PAPERMERGE__DATABASE__URL: mysql://myuser:mypass@db:3306/paperdb
-          PAPERMERGE__REDIS__URL: redis://redis:6379/0
-          PAPERMERGE__SEARCH__URL: solr://solr:8983/pmg-index
-      volumes:
-        - media_root:/core_app/media
-      depends_on:
-        - redis
-        - solr
-        - db
-
-    services:
-      web:
-        <<: *common
-        ports:
-         - "12000:80"
-      worker:
-        <<: *common
-        command: worker
-      redis:
-        image: redis:6
-      solr:
-        image: solr:9.3
-        ports:
-         - "8983:8983"
-        volumes:
-          - solr_data:/var/solr
-        command:
-          - solr-precreate
-          - pmg-index
-      db:
-        image: mariadb:11.2
-        volumes:
-          - maria:/var/lib/mysql
-        environment:
-          MYSQL_ROOT_PASSWORD: mypass
-          MYSQL_DATABASE: paperdb
-          MYSQL_USER: myuser
-          MYSQL_PASSWORD: mypass
-    volumes:
-      maria:
-      solr_data:
-      media_root:
-
-Open your web browser and point it to http://localhost:12000.
-
-## Ansible Playbook
-
-In order to deploy Papermerge on remote production machine (homelab VM, or cloud VPS instance)
-use following [Ansible Playbook](https://github.com/papermerge/ansible).
-
-## Tests
-
-    poetry install
-    poetry shell
-    pytest tests/
-
-## Linting
-
-Use following command to make sure that your code is formatted per PEP8 spec:
-
-    poetry run task lint
+## Demo Page
+
+Online demo is available at: https://papermerge.com/demo
+
+```
+Username: demo
+Password: demo
+```
+
+Please note that, in order to save resources, online demo instance is deployed
+using very basic setup: there is no OCR worker and no full text search engine
+behind. Online instance is reseted every 24 hours (0:00 UTC timezone). Reset
+means that all data is restored to initial state and all documents are deleted.