Update README features and roadmap

Author: sleroq

README.md

@@ -7,19 +7,21 @@
 - Inline editing of properties on the cards with suggestions
 - Custom backgrounds with brightness/blur controls
 - Integration with [Pretty Properties](https://github.com/anareaty/pretty-properties) for user-defined tag colors
-- Drag column headers to reorder columns
 - Tag styling with consistent colors based on tag name
 - Rendering of any selected properties
 - Multi-select cards (Shift/Cmd/Ctrl + click) and batch move between the columns, reorder or trash
 - Group by any property to organize cards (status, priority, tags, etc.)
-- Pin columns so they stay even when there are no cards
+- Pin columns so they stay visible even when there are no cards
+- Drag column headers to reorder columns
 
 ## Planned Features
 
-- Horizontal groups
-- Card blockers
-- Multi-card editing of properties
 - Card covers
+- Card blockers
+- Creating new columns
+- Navigation with HJKL
+- Horizontal groups (maybe?)
+- Multi-card editing of properties (maybe?)
 
 ## Installation