update README

README.md

@@ -1,68 +1,5 @@
 # Dockerized tt-rss using docker-compose
 
-The idea is to provide tt-rss working (and updating) out of the box with minimal fuss.
+This is a (legacy) PHP7 dynamic branch, using Alpine 3.12.
 
-- [FAQ](https://git.tt-rss.org/fox/ttrss-docker-compose/wiki#faq)
+If something here doesn't work, post in the Docker thread on the forums.
-
-General outline of the configuration is as follows:
-
- - separate containers (frontend: nginx, database: pgsql, app and updater: php/fpm)
- - tt-rss updates from git master repository on container restart
- - tt-rss source code is stored on a persistent volume so plugins, etc. could be easily added
- - database schema is updated automatically
- - nginx has its http port exposed to the outside
- - feed updates are handled via update daemon started in a separate container (`updater`)
- - optional `backups` container which performs tt-rss database backup once a week
-
-### Installation
-
-#### Check out scripts from Git:
-
-```sh
-git clone https://git.tt-rss.org/fox/ttrss-docker-compose.git ttrss-docker && cd ttrss-docker
-```
-
-#### Edit configuration files:
-
-Copy ``.env-dist`` to ``.env`` and edit any relevant variables you need changed.
-
-You will likely have to change ``TTRSS_SELF_URL_PATH`` which should equal fully qualified tt-rss
-URL as seen when opening it in your web browser. If this field is set incorrectly, you will
-likely see the correct value in the tt-rss fatal error message.
-
-By default, frontend container binds to `localhost` port `8280`. If you want the container to be
-accessible on the net, without using a reverse proxy sharing same host, you will need to
-remove ``127.0.0.1:`` from ``HTTP_PORT`` variable in ``.env``.
-
-Please don't rename the services inside `docker-compose.yml` unless you know what you're doing. Web container expects application container to be named `app`, if you rename it and it's not accessible via Docker DNS as `http://app` you will run into 502 errors on startup.
-
-Main configuration file (`config.php`) is rewritten on startup, don't edit it manually. Use [environment variables](https://git.tt-rss.org/fox/ttrss-docker-compose/wiki#how-do-i-set-global-configuration-options) or `config.d` snippets to customize it.
-
-#### Build and start the container
-
-```sh
-docker-compose up --build -d
-```
-
-See docker-compose documentation for more information and available options.
-
-#### Default login credentials
-
-Username: `admin`, password: `password`
-
-### Updating
-
-Restarting the container will update tt-rss from the origin repository. If database needs to be updated,
-tt-rss will prompt you to do so on next page refresh. Normally this happens automatically on container startup.
-
-#### Updating container scripts
-
-Latest tt-rss source code expects latest container scripts and vice versa. Updating both is a good idea.
-
-1. Stop the containers: ``docker-compose down && docker-compose rm``
-2. Update scripts from git: ``git pull origin master`` and apply any necessary modifications to ``.env``, etc.
-3. Rebuild and start the containers: ``docker-compose up --build``
-
-### Suggestions / bug reports
-
-- [Forum thread](https://community.tt-rss.org/t/docker-compose-tt-rss/2894)