Apply remaining working-tree updates

docs/README.md

@@ -12,12 +12,20 @@ make docs-preview # Preview built site at http://localhost:4173
 
 ## Pages
 
-- [Installation](/installation) — Platform requirements, AppImage/macOS/source installs, mpv plugin
-- [Usage](/usage) — Script vs plugin workflow, keybindings, YouTube playback
+### Getting Started
+
+- [Installation](/installation) — Requirements, Linux/macOS/Windows install, mpv plugin setup
+- [Usage](/usage) — `subminer` wrapper, mpv plugin, keybindings, YouTube playback
 - [Mining Workflow](/mining-workflow) — End-to-end sentence mining guide, overlay layers, card creation
+
+### Reference
+
 - [Configuration](/configuration) — Full config file reference and option details
 - [Anki Integration](/anki-integration) — AnkiConnect setup, field mapping, media generation, field grouping
 - [MPV Plugin](/mpv-plugin) — Chord keybindings, subminer.conf options, script messages
 - [Troubleshooting](/troubleshooting) — Common issues and solutions by category
-- [Development](/development) — Building, testing, contributing, environment variables
-- [Architecture](/architecture) — Service-oriented design, composition model, renderer module layout, extension rules
+
+### Development
+
+- [Building & Testing](/development) — Build commands, test suites, contributor notes, environment variables
+- [Architecture](/architecture) — Service-oriented design, composition model, renderer module layout