Docker setup for local development

[Bashamega]

Fixes Issue

Some people prefer running Postgres in docker, rather than installing it locally.

Changes proposed

Check List (Check all the applicable boxes)

• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
• All new and existing tests passed.
• This PR does not contain plagiarized content.
• The title of my pull request is a short description of the requested changes.

Screenshots

Note to reviewers

Can you add the label hacktoberfest-accepted?

[eddiejaoude]

Thanks 👍