feat: add Sequence for running commands in order. Closes #413.

This deprecates Sequentially.

examples/sequence/main.go

@@ -0,0 +1,40 @@
+package main
+
+// A simple example illustrating how to run a series of commands in order.
+
+import (
+	"fmt"
+	"os"
+
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type model struct{}
+
+func (m model) Init() tea.Cmd {
+	return tea.Sequence(
+		tea.Println("A"),
+		tea.Println("B"),
+		tea.Println("C"),
+		tea.Quit,
+	)
+}
+
+func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg.(type) {
+	case tea.KeyMsg:
+		return m, tea.Quit
+	}
+	return m, nil
+}
+
+func (m model) View() string {
+	return ""
+}
+
+func main() {
+	if err := tea.NewProgram(model{}).Start(); err != nil {
+		fmt.Println("Uh oh:", err)
+		os.Exit(1)
+	}
+}