Update readme

README.md

@@ -4,13 +4,46 @@
 
 termui is a cross-platform and fully-customizable terminal dashboard and widget library built on top of [termbox-go](https://github.com/nsf/termbox-go). It is inspired by [blessed-contrib](https://github.com/yaronn/blessed-contrib) and [tui-rs](https://github.com/fdehau/tui-rs) and written purely in Go.
 
-The core components of termui include:
+## Features
 
-- built in widget implementations for common use cases
-- utilities to create custom widgets
-- a Grid for relative widget positioning
-- an event system for keyboard, mouse and resizing events
-- colors and styling
+- Built in widget implementations for common use cases
+- Utilities to create custom widgets
+- A grid layout for relative widget positioning
+- Mouse support
+- Event handling for keyboard, mouse and resizing events
+- Colors and styling
+
+## Hello World
+
+```go
+package main
+
+import (
+	"log"
+
+	ui "github.com/gizak/termui"
+	"github.com/gizak/termui/widgets"
+)
+
+func main() {
+	if err := ui.Init(); err != nil {
+		log.Fatalf("failed to initialize termui: %v", err)
+	}
+	defer ui.Close()
+
+	p := widgets.NewParagraph()
+	p.Text = "Hello World!"
+	p.SetRect(0, 0, 25, 5)
+
+	ui.Render(p)
+
+	for e := range ui.PollEvents() {
+		if e.Type == ui.KeyboardEvent {
+			break
+		}
+	}
+}
+```
 
 ## Installation