Update the Docs deploy guide to with the correct name of the GitHub default branch

[123MwanjeMike]

Feature request

What problem does this feature solve?

The deploy guide in the docs uses an outdated name of the GitHub default branch

What does the proposed API look like?

The name uses main as the default GitHub branch instead of master.

How should this be implemented in your opinion?

The name should be changed from master to main

Are you willing to work on this yourself?

Yes