Suggested update to repository description

[hey-august]

The current description for this repository is:

📄 Documentation for zen's core principals such as information about the theme marketshare

I notice a few issues:

• 'Zen' should be capitalized
• 'Principles' is misspelled
• The description emphasizes the 'theme marketshare', which appears to be an outdated name for the theme store

I suggest an update to the following:

📄 User and developer documentation for Zen Browser.

Or this more verbose version:

📄 User and developer documentation for Zen Browser. Website built with Next.js and Fumadocs.