Add icon for obsidian.md

[ch3thanhs]

• Added icon for obsidian.md.
• SimilarWeb Rank - 12,539 - https://www.similarweb.com/website/obsidian.md/#overview

[jamie-mh]

Thanks for the icon. Can you use a single icon for light and dark themes without a background please? Like from the branding page.

Cheers

[ch3thanhs]

Hi @jamie-mh,

I have made the necessary changes.

[jamie-mh]

Thanks!