Making VIES package more inclusive #113

The technology industry is progressing towards a more inclusive society with many leading initiatives, including GitHub, taking steps to remove non-inclusive terminology from their operations. As an open source contributor having an open source project, I want to take up my responsibility and join the efforts.

Therefor I will take steps to make this project welcoming to many. I'm thinking about the following actions:

• rename the default base branch from "master" to "main"
• scan the code and tests for non-inclusive terms and rename them
• update my CONTRIBTING and CODE_OF_CONDUCT documents

Please provide constructive feedback on this proposed change.