Tutorial.md

@@ -8,6 +8,8 @@
 
 ``` 
 docker run --name demo_omop -e POSTGRES_PASSWORD=lollypop -e POSTGRES_USER=postgres -p 5432:5432 -v ${PWD}/postgres:/var/lib/postgresql/data -v ${PWD}/backup:/backup -d postgres 
+
+psql -U postgres -h localhost -p 5432 -c "CREATE DATABASE demo_omop;"
 ``` 
 
 ## OMOP-CDM vocabularies