Missing dotenv

[ltfschoen]

It would be helpful if the template already had npm install --save dotenv installed.
And already had require('dotenv').config() in truffle-config.js.
And an .env.example file, and .gitignore that ignored .env file
And had process.env.MOONBASE_PRIVATE_KEY in truffle-config.js.

[eshaben]

Thanks for the suggestion. I'll submit a PR for it!