Some cleanup, a couple new features added.

README.md

@@ -35,6 +35,36 @@ Bifrost includes a sophisticated sound system with:
 - **Plyer**: Cross-platform desktop notifications
 - **XDG Base Directory**: Standards-compliant configuration storage
 
+## Keyboard Shortcuts
+
+### Timeline Navigation
+- **Ctrl+1**: Switch to Home timeline
+- **Ctrl+2**: Switch to Mentions/Notifications timeline  
+- **Ctrl+3**: Switch to Local timeline
+- **Ctrl+4**: Switch to Federated timeline
+- **Ctrl+Tab**: Switch between timeline tabs
+- **F5**: Refresh current timeline
+
+### Post Actions
+- **Ctrl+N**: Compose new post
+- **Ctrl+R**: Reply to selected post
+- **Ctrl+B**: Boost/reblog selected post
+- **Ctrl+F**: Favorite selected post
+- **Ctrl+C**: Copy selected post to clipboard
+- **Ctrl+U**: Open URLs from selected post in browser
+
+### Navigation
+- **Arrow Keys**: Navigate through posts
+- **Page Up/Down**: Jump multiple posts
+- **Home/End**: Go to first/last post
+- **Enter**: Expand/collapse threads
+- **Tab**: Move between interface elements
+
+### Application
+- **Ctrl+,**: Open Settings
+- **Ctrl+Shift+A**: Add new account
+- **Ctrl+Q**: Quit application
+
 ## Installation
 
 ```bash
@@ -44,6 +74,12 @@ pip install -r requirements.txt
 python bifrost.py
 ```
 
+Or on Arch Linux:
+```bash
+sudo pacman -S python-pyside6 python-requests python-simpleaudio
+yay -S python-plyer
+```
+
 ## Accessibility Features
 
 - Complete keyboard navigation