Add automated contributors #70

[ASK-03]

This PR solves Issue #70

This PR is an extension of PR #73 and preserves the commits of the previous contributor

Changes:

• Add GITHUB_TOKEN using environment variable
• Removed cryos/avogadro from repositories variable as it has been closed
• Removed the code that updates credits.md as it is handled by Sphinx
• Added code block to add full name of the contributor if its is not available then the username is used
• Removed the sort as it was doing nothing.

[ASK-03]

@ghutchis, I have done the necessary changes. Please have a look.

[ghutchis]

It looks good although the downside is that the rest of the contributors list is sorted, and the new contributors are added to the end. I think it would be better to insert in sorted order or re-sort after adding the new contributor.

[ASK-03]

It looks good although the downside is that the rest of the contributors list is sorted, and the new contributors are added to the end. I think it would be better to insert in sorted order or re-sort after adding the new contributor.

Sure, I will add the changes. Could you please clarify if you prefer sort based on chronological order of first contribution or lexicographical sort would be suitable?

[ghutchis]

We have gone with lexicographical sort, thanks.

[ASK-03]

@ghutchis. I have made the changes.