Add Binderus to README.md (updated description)

Author: binderus

README.md

@@ -119,6 +119,7 @@
 
 ### Tauri
 
+- 📖🍎🔒 [Binderus](https://github.com/binderus/binderus) - Local-first note-taking with Notion-style WYSIWYG editing for plain text and Markdown, Obsidian-style philosophy, plugin system with AI/LLM plugin, custom themes, and optional encrypted vaults. No cloud, no account, no subscription. ~9 MB. `Source-available (MIT frontend, proprietary backend)` `Tauri/Rust+TypeScript`
 - 📖🍎 [Char](https://github.com/fastrepl/char) - Open-source AI notepad for meetings with flexible AI stack and on-device storage. `GPL-3.0` `Tauri/Rust+TypeScript`
 - 📖 [Inkwell](https://github.com/4worlds4w-svg/inkwell) - Portable Markdown editor with split view, live preview, themes, templates, focus mode, and diff viewer. `Source-available` `Tauri/Rust`
 - 📖 [Stik](https://github.com/0xMassi/stik_app) - Instant thought capture for macOS. Global hotkey summons a post-it note, type and close. Notes stored as plain markdown files. `MIT` `Tauri/TypeScript+Rust`