Duplicate info in readme.md and gplately/__init__.py

[michaelchin]

Hi team,

@GPlates/gplately-dev

The overlap mostly happens in the "Usage" section of readme.md and the "Quick start" section of init.py. See the screenshots below.

Generally, I prefer to avoid duplication. If there are no valid reasons for the duplication, I suggest consolidating the information in one place.

[jcannon-gplates]

Consolidating in one place sounds good. Then only need to update things in one place.

I did something like that recently with the listing of GPlates/pyGPlates dependency version requirements (duplicated between the GPlates website and GPlates ReadMe).

[michaelchin]

@GPlates/gplately-dev

If there is no objection, I will try to consolidate the info in one place to avoid duplication.