added db setup in readme

README.md

@@ -20,6 +20,7 @@ and finally save a *thing* in the database.
 Install prerequisites, then run:
 ```
 $ pipenv install
+$ pipenv shell
 $ npm install --dev
 $ npm run build
 $ pipenv run ./manage.py migrate
@@ -30,4 +31,9 @@ $ pipenv run ./manage.py runserver 8000
 `invman` needs the following software installed (apart from the one defined in `Pipfile`/`packages.json`):
 * PostgreSQL > 10
 * PostGIS
-* GDAL
\ No newline at end of file
+* GDAL
+
+You should also setup the database:
+* Create a DB user with username and password "InVmAn"
+* Create a new DB named invman
+* You can setup your own configuration in row 84 of invman/setting.py