Adding .envrc.example

[joshuacox]

I think I am attempting to fix #98

Description

In general this repo needs an example rc file anyhow.

Related Issues

#98

Solution and Design

I just follow what others had put in the discord channel and removed some of the values given.

Test Plan

ensure that everything runs after a fresh clone and docker up --build

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Docs update

Checklist

• My pull request is atomic and focuses on a single change.
• I have documented my changes clearly and comprehensively.
• I have added the required tests.

[czezi]

This has been mitigated by #102

[joshuacox]

This repo still needs an example envrc file!

[joshuacox]

@czezi an example envrc file is not only related to #98
An clearly defined example would make life much easier for those just starting out.