Simplify and update README.md features section

README.md

@@ -4,23 +4,12 @@ TextDB is a **non-destructive**, completely offline, local-first text editor wit
 
 ## Features
 
-- Non-destructive editing: manual saves are immutable; drafts never overwrite manual versions.
-- Sidebar list of texts with live search (titles + version bodies).
-- Editor with title, content area, and clear save status.
-- Cmd/Ctrl+S creates a new immutable manual version.
-- Markdown preview mode with external link support and printable output.
-- Pressing Tab toggles Edit/Preview mode.
-- Autosave draft (debounced) that can be safely discarded.
-- History panel listing versions by timestamp (drafts included when present).
-- Settings: theme (default/bright), text size slider, and optional line numbers.
-- Collapsible sidebar with persistent state.
-- Nested folders (projects) with expandable tree view.
-- Right-click a text or folder to move it into another folder.
-- Deleting a folder moves its contents one level up (never deletes texts).
-- Export the current text to a `.txt` file.
-- Open `.txt` or `.md` files to create new entries from file content.
-- Drag and drop `.txt` or `.md` files onto the window to import them.
-- Registers `.txt` and `.md` file associations for using TextDB as a default editor.
+- Non-destructive editing: immutable manual saves + safe autosaved drafts.
+- Version history panel with quick restore.
+- Markdown preview mode (toggle with Tab) + print-friendly output.
+- Nested folders with expandable tree; move items via right-click.
+- Open/import `.txt` and `.md` files; export to `.txt`.
+- App settings for theme, text size, and line numbers.
 
 ## Use cases