Update readme.md

typo

readme.md

@@ -11,7 +11,7 @@ This project uses [Feathers](http://feathersjs.com). An open source framework fo
 Postgresql and application config 
 ```
 docker run  --name edumeet-db -p 5432:5432 -e POSTGRES_PASSWORD=edumeet -d postgres
-docker exec -it edumeet-db psql -U postgrest -c "create database edumeet;"
+docker exec -it edumeet-db psql -U postgres -c "create database edumeet;"
 ```
 Install your dependencies
 ```