doc: README: Add more information about creating the database and tables

README.md

@@ -2,7 +2,8 @@
 
 ## Setup
 * clone the project
-* install geoip and postgres from your local package manager
+* install geoip and postgis from your local package manager
+  * `$ sudo pacman -S postgis geoip`
 * setup postgres on your machine, see e.g. https://wiki.archlinux.org/title/PostgreSQL
   * `$ sudo su postgres`
   * `$ initdb -D /var/lib/postgres/data`
@@ -10,13 +11,14 @@
 * create postgres user
   * `$ sudo su postgres`
   * `$ createuser --interactive` -> "owl" role with relevant priviledges
-* create postgres database "matcher"
+* create postgres database "matcher" with hstore and postgis extensions
   * `$ psql -U postgres`
   * `> CREATE DATABASE matcher;`
   * `> ALTER DATABASE matcher OWNER TO owl;`
+  * `> CREATE EXTENSION hstore;`
+  * `> CREATE EXTENSION postgis;`
 * create the db tables
-  * TODO find out where credentials are stored 
-  * setup credentials in default.py
+  * setup database credentials and name in default.py
   * `$ python create_db.py`
 * setup a venv
   * enter the venv, e.g. in pycharm