add extra help binding

internal/tui/tui.go

@@ -52,7 +52,7 @@ var keys = keyMap{
 		key.WithHelp("ctrl+c", "quit"),
 	),
 	Help: key.NewBinding(
-		key.WithKeys("ctrl+_"),
+		key.WithKeys("ctrl+_", "ctrl+h"),
 		key.WithHelp("ctrl+?", "toggle help"),
 	),
 
@@ -427,7 +427,7 @@ func (a appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		// If submitted, replace all named arguments and run the command
 		if msg.Submit {
 			content := msg.Content
-			
+
 			// Replace each named argument with its value
 			for name, value := range msg.Args {
 				placeholder := "$" + name