Error when trying to connect pgadmin with postgres

[JoaoAlem]

I am opening this issue because in the last weekend i've been working in the project and experienced some issues while trying to connect the pgadmin container into the postgre docker.
The problem is using docker name or docker ip to connect the pgadmin with postgres.
To fix the problem i added the two dockers in the same network.

Please, if this is not a issue, then mark this as resolved and close my pull request.
Thank you in advance.