Add noctis-minimus theme

[Anant-mishra1729]

Description

Add Noctis minimus theme

Fixes #32

Type of change

• Bug fix (added a non-breaking change which fixes an issue)
• New feature (added a non-breaking change which adds functionality)
• Updated documentation (updated the readme, templates, or other repo files)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• I have checked to make sure no other pull requests are open for this issue
• The code is properly formatted and is consistent with the existing code style
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

Screenshots

[DenverCoder1]

Looks good, would you like to add a static png to the docs/themes/README.md as well?

https://user-images.githubusercontent.com/20955511/135754306-58ceccde-90d9-46f9-a7b2-1cb54b6fbe24.png

[Anant-mishra1729]

Looks good, would you like to add a static png to the docs/themes/README.md as well?

https://user-images.githubusercontent.com/20955511/135754306-58ceccde-90d9-46f9-a7b2-1cb54b6fbe24.png

Thanks for replying @DenverCoder1
Added PNG file.

[DenverCoder1]

Thanks for contributing! 🎉