doc/README: update current features

README.md

@@ -7,14 +7,17 @@ This is an experimental application and you should generally prefer to use [qbol
 ## Features
 
 - Native desktop application, running on Linux, Windows, and macOS
+- Connect to multiple databases
+- Browse table/bucket content
+- Run custom SQL queries
+- Safe handling for non-UTF8 key and data fields
 - Supported databases:
   - Bolt
     - Full compatibility via the upstream [etcd-io/bbolt](https://github.com/etcd-io/bbolt) library
-    - Browse database content
     - Recursive bucket support
-    - Safe handling for non-UTF8 key and data fields
   - SQLite
-    - Browse table content
+    - Uses CGo if available or modernc.org if not
+  - Badger v4
 
 ## License