upgrade libraries

Author: rwieruch

README.md

@@ -2,7 +2,7 @@
 
 [![Slack](https://slack-the-road-to-learn-react.wieruch.com/badge.svg)](https://slack-the-road-to-learn-react.wieruch.com/)
 
-A full-fledged Apollo Server 2 with Apollo Client 2 starter project with React, Express and PostgreSQL. 
+A full-fledged Apollo Server 2 with Apollo Client 2 starter project with React, Express and PostgreSQL.
 
 [GraphQL Server Tutorial](https://www.robinwieruch.de/graphql-apollo-server-tutorial/)
 
@@ -52,6 +52,8 @@ Since this boilerplate project is using PostgreSQL, you have to install it for y
 
 ```
 DATABASE=mydatabase
+TEST_DATABASE=mytestdatabase
+
 DATABASE_USER=postgres
 DATABASE_PASSWORD=postgres