Update env file name to match reality and docs

[assertchris]

Proposed changes

This corrects a confusing bit of documentation (which differs from the file that is automatically created and documented on the official docs).

Types of changes

What types of changes does your code introduce?

• [x] Bugfix (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 not work as expected)

Checklist

• [x] I have read the CONTRIBUTING doc
• [x] Lint and unit tests pass locally with my changes
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [x] I have added necessary documentation (if appropriate)

[coveralls]

Coverage remained the same at 81.128% when pulling d4bd2f927eb6471fb415266a5cd401370fbc1266 on assertchris:patch-1 into 4a461e2144c4ea8bf9b7a5477916cb81c029dc63 on adonisjs:develop.

[coveralls]

Coverage remained the same at 81.128% when pulling d4bd2f927eb6471fb415266a5cd401370fbc1266 on assertchris:patch-1 into 4a461e2144c4ea8bf9b7a5477916cb81c029dc63 on adonisjs:develop.