Add installing guide to the readme

README.md

@@ -18,7 +18,33 @@ Currently there is no documentation :-/
 
 Installing
 ---
-TODO :-/
+
+1. Pull the repository to preferred location (`git clone
+   https://gitea.ledoian.cz/LEdoian/Wish.git <location>` should be sufficient).
+2. Optionally create a virtualenv (the deployment script and example
+   configuration expect it in `venv` directory at repo root).
+3. Install the requirements
+4. Tweak and deploy the settings:
+	- Instance configuration template is in `conf/deploycfg.py` and should be
+	  placed in `$XDG_CONFIG_DIR/wish/deploycfg.py` (or
+	  `~/.config/wish/deploycfg.py` if `$XDG_CONFIG_DIR` is not set). Tweak to
+	  your needs according to [Django
+	  documentation](https://docs.djangoproject.com/en/4.0/ref/settings/).
+	- Configure a web reverse proxy and WSGI server to your liking. The `conf`
+	  directory contains example configuration files for uWSGI, nginx and
+	  systemd.
+5. Verify the configuration using `./manage.py check --deploy`. If there are
+   relevant errors, tweak the configuration more.
+6. If everything seems OK, start the systemd service and try reaching the site.
+
+You will likely need to reference documentation of Django, uWSGI (or other WSGI
+server implementation), web reverse proxy of your liking and your service manager.
+
+If you deploy using git, have a virtualenv in `./venv/` and use systemd to run
+the service, you can try to use the provided script `./deploy.sh` for
+subsequent deploys. Keep in mind, however, that it is written so it WorksForMe™
+and I do not guarantee that it will work for you. But I might be able to help
+you and/or am open to changes, so feel free to send me questions and/or patches.
 
 Licence
 ---