Updated design new logo papermark.md (3 New Logos)

[Atharva-3000]

Added new entry of submission.

Made 3 subtle logos.

Design Ideology

The Papermark's website looks elegant with emphasis on black and white in logo, the subtle changes will make a huge impact.

Played out with Fonts and added a subtle borders like a Page of Paper 📄 has:

1st

2nd

3rd