[doc] updated README with installation instructions

README.md

@@ -10,3 +10,62 @@ starlette
 uvicorn
 pytest
 requests
+
+# Install
+
+Initialize a database in the home directory of your system user.
+
+`sqlite3 -init ./db/pyheatpump.sql /var/run/pyheatpump/pyheatpump.sqlite3`
+
+Create a configuration file in `/etc/pyheatpump.ini` .
+
+```
+[heatpump]
+mac_address = 00:00:00:00:00:00
+database = /var/run/pyheatpump/pyheatpump.sqlite3
+
+[supervisor]
+scheme = https
+host = supervision-test.gteo.fr:8081
+get_path = /Symfony/web/app_dev.php/boardws/insert
+post_path = /Symfony/web/app_dev.php/boardws/orders
+interval = 10000
+heatpump_id = 42
+
+[api]
+host = 0.0.0.0
+port = 80
+```
+
+Fetch manually to initialize the data.
+
+```
+pyheatpump fetch
+```
+
+Insert the init files into the right locations.
+
+```
+cp -t /etc/init.d conf/pyheatpump
+chmod +x /etc/init.d/pyheatpump
+rc-update add default pyheatpump
+rc-service pyheatpump start
+```
+
+```
+cp ./conf/pyheatpump.systemd.socket /etc/systemd/system/pyheatpump.socket
+cp ./conf/pyheatpump.systemd.service /etc/systemd/system/pyheatpump.service
+systemctl daemon-reload
+systemctl enable pyheatpump
+systemctl start pyheatpump
+```
+
+Enable the *cron task / systemd timer* for the automatic fetch and supervise tasks.
+
+```
+cat conf/pyheatpump.cron >> /etc/crontab
+```
+
+```
+cp ./conf/pyheatpump.systemd.timer /etc/systemd/system/pyheatpump.timer
+```