Update README.md

readme correction (env)

Author: giovannidemaria

README.md

@@ -45,18 +45,18 @@ pnpm install
 
 ### Setup environment
 #### Database
-Place this [.env file](https://drive.google.com/file/d/1_TbKfKMlw9Rpy6H8AFWDVxRYtMCgsiy6/view?usp=drive_link) in the `/api` folder. It contains environmental variables used to connect to the database and for external services.
+Place this [.env file](https://drive.google.com/file/d/1_TbKfKMlw9Rpy6H8AFWDVxRYtMCgsiy6/view?usp=drive_link) in the `/api` folder. Then rename it .env. It contains environmental variables used to connect to the database and for external services. In addition, add the database informations also in the .env_db file
 
 #### Auth0
-Place this [.env file](https://drive.google.com/file/d/1o_HY3KvsCyTsTvY_BcIeymQy5TO6w8Ts/view?usp=drive_link) in the `/frontend` folder. It contains environmental variables used to interact with Auth0.
+Place this [.env file](https://drive.google.com/file/d/1o_HY3KvsCyTsTvY_BcIeymQy5TO6w8Ts/view?usp=drive_link) in the `/frontend` folder. Then rename it .env. It contains environmental variables used to interact with Auth0.
 
 ### Run the project
 
 Execute the following commands from the root folder.
 
 #### Backend
 ```Shell
-docker compose up # Spins up a PostgreSQL database
+docker compose up db # Spins up a PostgreSQL database
 
 pnpm dev:api # Starts the backend server
 ```