📝 - Updated env vars and added info about DB URL

README.md

@@ -2,8 +2,10 @@
 ## Setup
 ### Env file
 - DATABASE_URL
+- MYSQL_DATABASE
 - MYSQL_ROOT_PASSWORD
 - CINEALLO_PORT
+``DATABASE_URL`` shoud look like this: ``mysql://root:<MYSQL_ROOT_PASSWORD>@db:3306/<MYSQL_DATABASE>``
 ## Usage
 ### Docker
 ```bash